Plaintiffs are eBay “power sellers.” Through the Internet auction site, they sell a variety of fabrics from their home in Colorado. This case concerns two of plaintiffs’ prints, both of which play on famous images by the artist Erté, Symphony in Black and Ebony on White. While Erté’s images depict elegant women walking aquiline dogs, plaintiffs’ prints portray Betty Boop next to her aptly named canine companion, Pudgy.
Defendants, owners of the rights to the Erté images, saw plaintiffs’ eBay auction page (which disclosed plaintiffs’ Colorado location), and came to the conclusion that plaintiffs’ prints infringed their copyrights. Defendants promptly contacted eBay in California and successfully suspended plaintiffs’ auction, an action that allegedly had adverse consequences for plaintiffs’ business and future dealings with the auction site. By e-mail, defendants also threatened plaintiffs with suit in federal court. Before defendants could carry out that threat, however, plaintiffs initiated this action in federal district court in Colorado seeking a declaratory judgment that their prints do not infringe defendants’ copyrights. Defendants responded with a motion to dismiss, arguing that the court *1068 lacked personal jurisdiction over them. The district court concurred and dismissed plaintiffs’ complaint. For reasons we explore below, we reverse.
I
Taken in the light most favorable to plaintiffs, as they must be at this stage in the litigation, the facts of this case establish that Karen Dudnikov and Michael Meadors, a husband-and-wife team, operate a small and unincorporated Internet-based business from their home in Colorado. Together, they sell fabric and handmade crafts such as aprons, blankets, and placemats under the name “Tabber’s Temptations.” The majority of their income is derived from selling these products on eBay, whose operations are based in California. Tabber’s Temptations is described by eBay as a “power seller,” and has received over 6,000 “feedback messages” in the past year from its eBay customers, and over 13,000 positive feedback messages since 1998. Ms. Dudni-kov’s and Mr. Meadors’s eBay auction pages clearly list the location of their merchandise as Hartsel, Colorado, and link to their personal website which contains more information about their business, including its location in Colorado.
In October 2005, Ms. Dudnikov and Mr. Meadors launched an auction on eBay offering fabric for sale with the imprint of the cartoon character Betty Boop wearing various gowns. One of these gowns, Ms. Dudnikov and Mr. Meadors concede for purposes of defendants’ motion to dismiss, is easily recognizable as a design of the artist known as Erté, a 20th century Russian-born French artist and fashion designer. In Erté’s original works, Symphony In Black and Ebony On White, a tall, slender woman is pictured wearing a floor length form-fitting dress that trails her feet, and holding the leash of a thin, regal dog. The fabric offered for sale by Ms. Dudnikov and Mr. Meadors replaced the rather elegant woman in Erté’s images with the rather less elegant Betty Boop, and substituted Erté’s svelte canine with Betty Boop’s pet, Pudgy.
SevenArts, a British corporation, owns the copyright in these Erté works. Chalk & Vermilion, a Delaware corporation with its principal place of business in Connecticut, is SevenArts’ American agent. Chalk & Vermilion is also a member of eBay’s “Verified Rights Owner” (“VeRO”) program. 1 Under this program, eBay will automatically terminate an ongoing auction when it receives a notice of claimed infringement (“NOCI”) from a VeRO member stating, under penalty of perjury, that it has a good-faith belief that an item up for auction infringes its copyright. The complaint, if unresolved, can also result in the suspension of the seller’s account. Under the VeRO program, a targeted seller may file a “counter notice” with eBay contesting the validity of the copyright claim. Upon receipt of such a filing, eBay notifies the initial complainant that it will reinstate the contested auction in 10 days unless it is notified that there is pending legal action seeking to adjudicate the parties’ rights. *1069 If the complaining party does initiate legal proceedings within 10 days, eBay will continue to suppress the contested auction pending the outcome of litigation.
Invoking the VeRO program on behalf of SevenArts, Chalk & Vermilion filed a NOCI with eBay contesting plaintiffs’ sale of the Betty Boop fabric. In turn, eBay cancelled the auction and notified Ms. Dudnikov and Mr. Meadors of the NOCI. Ms. Dudnikov then contacted Chalk & Vermilion and SevenArts by e-mail to ask that the NOCI be withdrawn. Ms. Dudni-kov indicated that she would voluntarily refrain from relisting the disputed fabric, but said that she was worried about having a black mark on her eBay record as a result of having a NOCI filed against her. “I make my living on eBay. I have a 99.9% satisfaction rating.... Your action puts my business in danger of going under. Nothing to you perhaps but everything to me.” Applt’s App. at 39. When Seve-nArts declined to withdraw the NOCI, plaintiffs submitted a counter notice to eBay contesting the validity of SevenArts’ copyright claim. In response, SevenArts notified Ms. Dudnikov by e-mail that, in order to prevent the auction from being reinstated under eBay procedures, it intended to “file an action in the federal court[s]” within 10 days. Id. at 44.
Six days after receiving this notice, and before defendants followed through on their threat to sue, Ms. Dudnikov and Mr. Meadors filed a pro se complaint in the United States District Court for the District of Colorado. Their suit sought a declaratory judgment clarifying that their sale of the contested Betty Boop fabric did not infringe defendants’ copyrights, and an injunction preventing defendants from interfering with future sales of the fabric.
SevenArts and Chalk. & Vermilion responded by entering a special appearance and moving to dismiss for lack of personal jurisdiction. 2 In a very thorough opinion, the magistrate judge assigned the case for a recommended disposition, see 28 U.S.C. § 636(b)(1)(A), reasoned that, while the court lacked general jurisdiction over defendants, specific jurisdiction did exist. Defendants objected to the magistrate judge’s recommendation and the district court sustained their objection, held that neither specific nor general jurisdiction existed, and thus granted defendants’ motion to dismiss. Ms, Dudnikov and Mr. Meadors now appeal the dismissal of their action, though they contest only the district court’s disposition of the specific jurisdiction question.
II
In conducting our review, we are mindful that plaintiffs bear the burden of establishing personal jurisdiction.
Intercon, Inc. v. Bell Atl. Internet Solutions, Inc.,
*1070
When, as here, personal jurisdiction is found wanting on the basis of the complaint and affidavits, our review of the district court’s dismissal is
de novo,
taking as true all well-pled (that is, plausible, nonconclusory, and non-speculative,
see Bell Atl. Corp. v. Twombly,
— U.S. —,
Turning to the test for personal jurisdiction to which these rules of review apply, our analysis begins with two questions. First, we ask whether any applicable statute authorizes the service of process on defendants. Second, we examine whether the exercise of such statutory jurisdiction comports with constitutional due process demands.
Trujillo v. Williams,
On the first of these scores, neither the federal Copyright Act, 17 U.S.C. § 101
et seq.,
nor the Declaratory Judgment Act, 28 U.S.C. § 2201
et seq,
provides for nationwide service of process, so Fed.R.Civ.P. 4(k)(1)(A) commands the district court (and us) to apply the law of the state in which the district court sits. Colorado’s long-arm statute, in turn, confers the maximum jurisdiction permissible consistent with the Due Process Clause.
Archangel Diamond Corp. v. Lukoil,
The Supreme Court has held that, to exercise jurisdiction in harmony with due process, defendants must have “minimum contacts” with the forum state, such that having to defend a lawsuit there would not “offend traditional notions of fair play and substantial justice.”
Int’l Shoe Co. v. Washington,
In this arena, the Supreme Court has instructed that the “minimum contacts” standard requires, first, that the out-of-state defendant must have “purposefully directed” its activities at residents of the forum state, and second, that the plaintiffs injuries must “arise out of’ defendant’s forum-related activities.
Burger King Corp. v. Rudzewicz,
III
The first element can appear in different guises. In the tort context, we often ask whether the nonresident defendant “purposefully directed” its activities at the forum state; in contract cases, meanwhile, we sometimes ask whether the defendant “purposefully availed” itself of the privilege of conducting activities or consummating a transaction in the forum state.
See Bell Helicopter Textron, Inc. v. Heliqwest Int’l, Ltd.,
Because this rule of law is more aspirational than self-defining, courts have often retreated to analogizing individual cases to discrete Supreme Court personal jurisdiction precedents. Indeed, this feature of due process personal jurisdiction litigation has led many commentators to complain of the lack of predictability and certainty in this area of law.
See Int’l Shoe,
In
Calder,
Shirley Jones, of Partridge Family fame, brought suit in California against the
National Enquirer,
the
Enquirer’s
local distributor, and the writer and editor of an allegedly libelous article published in the
Enquirer. Id.
at 785-86,
Distilling Calder to its essence, we thus understand the Court to have found purposeful direction there because of the presence of (a) an intentional action (writing, editing, and publishing the article), that was (b) expressly aimed at the forum state (the article was about a California resident and her activities in California; likewise it was drawn from California sources and widely distributed in that state), with (c) knowledge that the brunt of the injury would be felt in the forum state (defendants knew Ms. Jones was in California and her career revolved around the entertainment industry there). At plaintiffs’ invitation, we turn our attention to examining the presence or absence of these same factors in their case.
A
1
In
Calder,
the Court emphasized in the first instance that the defendants undertook “intentional, and allegedly tortious, actions-”
Id.
at 789,
In favor of the view that any intentional act, wrongful or not, suffices under
Calder,
plaintiffs point to the Ninth Circuit’s decision in
Yahoo! Inc. v. La Ligue Contre Le Racisme Et L’Antisemitisme,
Defendants, unsurprisingly, disagree (as did the district court), arguing that jurisdiction should be denied because their conduct in terminating plaintiffs’ auction — and thereby vindicating their putative intellectual property rights — cannot be fairly described as “wrongful” conduct. On this score, defendants could point to a consid
*1073
erable dissent in
Yahoo!
arguing that in non-contract cases allegations of wrongful behavior are necessary,
see
As it happens, we are able to avoid entering this thicket. Even if
Calder
can be properly read as requiring some form of “wrongful” intentional conduct, we agree with plaintiffs that their complaint complies. Plaintiffs allege that defendants intentionally sent a letter to eBay invoking the VeRO procedures. Compl. ¶¶ 14, 22-23, 33, Ex. 2, 4; Plaintiffs’ Response to Motion to Dismiss ¶ 9. They allege that defendants took this action with the intent of terminating plaintiffs’ auction — thereby causing them lost business and a damaged business reputation. They further allege that defendants took this action on the basis of an erroneous copyright claim, asserting that the fabric in question was perfectly lawful in light of the fair use doctrine, and that defendants were well aware of this fact. 17 U.S.C. § 107; Compl. ¶45
et seq.
Finally, plaintiffs allege that, in light of the foregoing, defendants’ claim that they were innocently seeking to protect their copyright was “simply a smoke-screen attempt to justify unwarranted interference in the lawful sale of an item.” Compl. ¶ 60. While conclusory allegations, or a mere “formulaic recitation of the elements of a cause of action,” will not suffice to defeat a Fed.R.Civ.P. 12(b) motion,
Twombly,
2
Defendants separately object that plaintiffs seek jurisdiction based not on defendants’ intentional actions, as they must, but instead based on plaintiffs’ own, unilateral conduct. In this vein, defendants emphasize it was plaintiffs ,who chose to sell allegedly infringing material through eBay, and they remind us of our legion case law holding that “the unilateral activity of another party ‘is not an appropriate consideration' when determining whether a defendant has sufficient contacts with a forum State to justify an assertion of jurisdiction.’ ”
Doe v. Nat’l Med. Servs.,
Unilateral acts, however, occur in at least .t^o analytically distinct ways. First, as in
World-Wide Volkswagen Corp. v. Woodson,
With respect to the first type of unilateral act, we have no difficulty determining that plaintiffs have alleged an intentional and wrongful act by defendants on which jurisdiction may permissibly be founded. Plaintiffs do not argue, and we do not remotely hold, that jurisdiction is proper simply based on plaintiffs’ decision to hold an eBay auction of materials that allegedly infringe upon defendants’ copyrights. 8 Rather, it is essential to our analysis that it was defendants who in this case took the intentional action of sending a NOCI specifically designed to terminate plaintiffs’ auction, and defendants who followed that act with an express threat to sue within 10 days in order to prevent the revival of plaintiffs’ auction.
B
Calder,
of course, required more than an intentional action. It also stressed that the defendants’ conduct was “expressly aimed at California.”
Defendants submit that plaintiffs have failed to meet the “expressly aiming” standard, pointing to the uncontested fact that they sent their NOCI invoking eBay’s VeRO procedures not to plaintiffs in Colorado but to eBay in California. Such focus on the physical direction of defendants’ NOCI, however, does not tell the whole story. It overlooks, for example, the fact that eBay’s VeRO procedures allow a NOCI filer to terminate another party’s auction automatically, as well as plaintiffs’ allegation that defendants intended to halt their auction. Compl. ¶¶ 14, 22-23, 33, Ex. 2, 4; Plaintiffs’ Response to Motion to Dismiss ¶ 9. It overlooks, too, the fact that the NOCI at issue in this case itself attests to this alleged intent: the NOCI explicitly requests eBay to “act expeditiously to remove or disable access to the material or items claimed to be infringing.” Applt’s App. at 40. Defendants’ affidavits themselves do not contest, but instead tend to confirm, that they intended to halt plaintiffs’ auction. The presidents of both Chalk & Vermilion and SevenArts state that “[t]he NOCI was submitted to protect copyrights in the Erté design, and was not submitted with the knowledge or intent that eBay would impose any penalty upon Plaintiffs beyond the sale of the fabric specifically referenced in the NOCI.” Applt’s App. at 138, 140 (emphasis added). Further, in an e-mail responding to the possibility that the allegedly infringing fabric would be relisted as a result of plaintiffs’ counter notice, SevenArts instructed Chalk & Vermilion to “have E Bay remove the item again if that is possible.” Id. at 43. And when plaintiffs did not acquiesce, defendants e-mailed plaintiffs directly in Colorado threatening them with suit in federal court to prevent the future sales of the fabric in question. Id. at 44.
Thus, while, as defendants emphasize, the NOCI formally traveled only to California, it can be fairly characterized as an intended means to the further intended end of cancelling plaintiffs’ auction in Colorado. In this way, it is something like a bank shot in basketball. A player who shoots the ball off of the backboard intends to hit the backboard, but he does so in the service of his further intention of putting the ball into the basket. Here, defendants intended to send the NOCI to eBay in California, but they did so with the ultimate purpose of cancelling plaintiffs’ auction in Colorado. Their “express aim” thus can be said to have reached into Colorado in much the same way that a basketball player’s express aim in shooting off of the backboard is not simply to hit the backboard, but to make a basket. .
Our view finds support in
Burger King,
as well as in a pair of cases from a sister circuit. In
Burger King,
the Supreme Court found jurisdiction in Florida appropriate over a Michigan franchisee who breached an agreement with, and infringed the trademark of, a Florida franchisor. Foreshadowing the Internet age, the Court noted that “it is an inescapable fact of modern commercial life that a substantial amount of business is transacted solely by mail and wire communications.... So long as a commercial actor’s efforts are ‘purposefully directed’ toward residents of another State, we have consistently rejected the notion that an absence of physical
*1076
contacts can defeat personal jurisdiction there.”
In
Bancroft,
a case perhaps even more analogous to ours, a small California company that sold computer and networking products and services, Bancroft & Masters, registered the domain name masters.com with Network Solutions Inc. (“NSI”), a company based in Virginia. Augusta National, which operates the Augusta National Golf Club and sponsors the Masters golf tournament, sent a letter from its headquarters in Georgia to NSI in Virginia, asserting that Bancroft & Masters had violated its trademark. Much as under the VeRO procedures at issue here, Augusta National’s complaint had the effect, under NSI policy, of prohibiting Bancroft & Masters from retaining its domain name unless it obtained a declaratory judgment that it was not infringing on Augusta National’s marks. Bancroft
&
Masters brought such a suit in California and our sister circuit held that, because Augusta National’s purpose was specifically to target a known California business, it satisfied
Calder’s,
“express aiming” test despite the fact that letter was formally sent to Virginia rather than California.
Informative in its contrast,
Schwarzenegger v. Fred Martin Motor Co.,
While defendants do not deny that they sought to terminate plaintiffs’ auction, they do deny that they knew plaintiffs’ business was located in Colorado, and therefore that their conduct could have been expressly aimed at Colorado. But, while defendants are of course free to pursue that defense in later stages of this litigation, plaintiffs have alleged that defendants knew the location of their business. Plaintiffs’ Response to Motion to Dismiss ¶ 10. Neither does this allegation rest on conjecture or supposition, but on well-pled and record facts.
Compare id.
and Compl.
with Twombly,
C
In assessing the question of “purposeful direction,”
Calder
stressed the fact that the
Enquirer
defendants “knew that the brunt of th[e] injury would be felt” in the forum state.
Calder,
Defendants do, however, contend, just as the unsuccessful defendants in
Calder
did,
Indeed, at the end of the day our case is an easier one than
Calder
itself. There, the defendants intended to write an article, the “focal point” of which was California, for the
Enquirer
to publish and distribute in California.
IV
Having determined that defendants “purposefully directed” their activities at the forum state, due process requires us next to ask whether plaintiffs’ injuries “arise out of’ defendants’ contacts with the forum jurisdiction. Many courts have interpreted this language to require some sort of causal connection between a defendant’s contacts and the suit at issue. Of course, as Prosser and Keeton have noted, “[t]here is perhaps nothing in the entire field of law which has called forth more disagreement, or upon which the opinions are in such a welter of confusion,” as causation doctrine,
Prosser and Keeton on the Law of Torts
263 (5th ed., 1984), and this arena is no exception. Some courts have interpreted the phrase “arise out of’ as endorsing a theory of “but-for” causation,
see, e.g., Mattel, Inc. v. Greiner and Hausser GmbH.,
The parties point us to no case in which we have had occasion to announce a test as to when a contact is sufficiently related to a claim to support the exercise of jurisdiction, but we agree with our sister circuit that the “substantial connection” test inappropriately blurs the distinction between specific and general personal jurisdiction.
See Sandy Lane Hotel Co.,
As between the remaining but-for and proximate causation tests, we have no need to pick sides today. On the facts of this case, we are satisfied that either theory adopted by our sister circuits would support a determination that plaintiffs’ cause of action arises from the defendants’ contact with Colorado. That defendants’ contact with Colorado, the sending of the NOCI to eBay and the ensuing e-mail exchange in which defendants threatened plaintiffs with suit, is a but-for cause of this action is clear. After all, if defendants had not claimed that plaintiffs were infringing their copyright, plaintiffs would have had no reason to seek a declaratory judgment that their actions did not run afoul of defendants’ rights. The NOCI was also the cause in fact of the real world harm that plaintiffs seek to have remedied: the cancellation of their auction and the black mark on their eBay record. In the absence of the NOCI, plaintiffs would not have had to contend with either of those effects, and thus would have had no reason to attempt to hale defendants into court.
We believe that the NOCI can also fairly be considered the proximate cause of plaintiffs’ claim. In the NOCI, defendants swore under penalty of perjury that they had a good faith belief that plaintiffs’ auction infringed their rights. The merits of plaintiffs’ declaratory judgment action addresses the exact same question, and their claim for injunctive relief seeks to prevent future interference with plaintiffs’ business, interference which defendants have threatened. More specifically, plaintiffs argue that defendants’ infringement claim contained in the NOCI is incorrect, and that therefore their auction was improperly cancelled and their sales record erroneously smeared. The NOCI is thus at the very core of plaintiffs’ suit.
Defendants’ chief argument against finding plaintiffs’ suit sufficiently related to the NOCI is (once again) that plaintiffs’ suit is based on plaintiffs’ unilateral conduct. Even if the NOCI was purposefully directed at Colorado, defendants argue that because plaintiffs are seeking a judgment that their own actions are legal, their claim does not arise out of any activity of defendants. This argument, however, neglects the fact that plaintiffs filed suit in direct response to defendants’ suppression of their auction and threat to bring a suit in less than two weeks. While plaintiffs’ actions are admittedly also a but-for cause of this suit, that does not change the fact that what plaintiffs seek is relief from defendants’ actions and the ensuing consequences following directly from those actions.
Our case is, in this respect, akin to
Red Wing Shoe Co. v. Hockerson-Halberstadt, Inc.,
Similarly, in
CompuServe,
a Texas defendant had threatened to sue an Ohio corporation for trademark infringement if it did not pay him $100,000 to settle his claim. The Ohio corporation thereafter filed a preemptive declaratory judgment suit in Ohio. After holding that the defendant’s threat constituted a contact with Ohio, the court applied a proximate cause standard to determine whether the plaintiffs claim arose from that contact.
V
Having determined that plaintiffs met their burden, at this stage of the litigation, of establishing “minimum contacts” — ’that defendants’ conduct was “purposefully directed” at Colorado and that this lawsuit arose out of defendants’ contacts with Colorado — we must still inquire whether the exercise of personal jurisdiction would “offend traditional notions of fair play and substantial justice.”
Int’l Shoe,
In making such an inquiry courts traditionally consider factors such as these:
(1) the burden on the defendant, (2) the forum state’s interests in resolving the dispute, (3) the plaintiffs interest in receiving convenient and effectual relief, (4) the interstate judicial system’s interest in obtaining the most efficient resolution of controversies, and (5) the shared interest of the several states [or foreign nations] in furthering fundamental social policies.
OMI,
None of these factors, separately or in combination, seem to weigh definitively in favor of defendants. With respect to the burden on them associated with litigating in Colorado, defendants’ threat to litigate in federal court indicates a willingness to litigate in some federal court in the United States. As far as we can tell, there are a finite number of possible fora in this country in which this case might be litigated, including perhaps Connecticut or Dela *1081 ware, Chalk & Vermilion’s home state and state of incorporation; Colorado, the plaintiffs’ home state; or California, eBay’s home state.
California has virtually nothing to do with this litigation: eBay is not a party to this suit, we have been pointed to no specific witnesses or evidence located in California, and the merits of this dispute are wholly unrelated to California substantive law. Thus, we are left to consider the burden on the parties of litigating this suit in Colorado rather than, say, Connecticut or Delaware. As in any case in which the parties reside in different fora, one side must bear the inconvenience of litigating “on the road.” While admittedly a burden, defendants have not indicated that their defense of this case would be hindered by the territorial limits on the Colorado district court’s power to subpoena relevant witnesses, or indeed hampered in any other significant way.
To be sure, on the other side of the coin, while “[s]tates have an important interest in providing a forum in which their residents can seek redress for injuries caused by out-of-state actors,”
OMI,
The only traditional factor that does loom large for either side in this case is the potential policy interests of a foreign nation.
See Pro Axess, Inc.,
Defendants do submit, however, that an entirely different sort of policy interest does weigh strongly in its favor—namely, the federal interest in allowing federal copyright holders to alert potential infringers of their rights and encouraging the settlement of such potential disputes. By way of support, they point us to
Red
*1082
Wing Shoe.
There, a Louisiana corporation sent a letter to a Minnesota corporation informing the latter that the former believed a shoe manufactured by the Minnesota corporation infringed the Louisiana corporation’s patent, and offering to negotiate for a non-exclusive license. The Federal Circuit held that this “cease-and-desist” letter constituted a contact purposefully directed at Minnesota, and that the case arose out of that contact.
See supra
Part IV. Yet, the court held that a patent holder would not “subject itself to personal jurisdiction in a forum
solely by informing
a party who happens to be located there of suspected infringement.”
Red Wing Shoe,
Assuming without deciding that it would be unreasonable to found jurisdiction solely on a cease-and-desist letter, this case is readily distinguishable. Defendants’ NOCI went well beyond providing notice to plaintiffs of the claimed infringement and seeking settlement; it purposefully caused the cancellation of their auction and allegedly threatened their future access to eBay and the viability of their business. Compl. ¶¶ 15, 30. Of course, plaintiffs’ contact information was readily accessible from their eBay auction site and defendants thus had the option of sending a mere cease-and-desist letter directly to plaintiffs. Instead, however, they communicated their complaint to a third party with the intent that the third party take action directly against plaintiffs’ business interests, something ' that thereafter occurred. On these facts, we cannot say that the exercise of jurisdiction would be either unfair or unjust, and again our inquiry profits by analogy to
Bancroft.
The court there held that cases involving cease-and-desist letters were inapposite because the plaintiffs case arose “principally out of [the defendant]^ letter to [the third party], and that letter did more than warn or threaten [the plaintiff].”
Defendants sent a NOCI to eBay expressly intending (and effectually acting) to suspend plaintiffs’ auction in Colorado. Plaintiffs’ suit arises from, and is indeed an effort to reverse, the intended consequences of defendants’ NOCI which they incurred in Colorado. For purposes of this motion, moreover, we must assume defendants knew plaintiffs’ business was located in Colorado. And defendants point us to no basis in traditional notions of fair play or substantial justice that would preclude suit in that forum. Accordingly, the judgment of the district court is reversed, and this case is remanded for further proceedings not inconsistent with this opinion.
So ordered.
Notes
. Ms. Dudnikov and Mr. Meadors contend that the VeRO program was created to take advantage of the safe harbor provision of the Digital Millennium Copyright Act ("DMCA”), 17 U.S.C. § 512, which absolves an Internet Service Provider ("ISP”) of liability for infringing material posted by a user as long as the ISP takes down the allegedly infringing copyrighted material in response to a notice of claimed infringement. Despite the similarities between the DMCA requirements and the VeRO program, defendants assert that "eBay makes no reference to the DMCA in its statement of the VeRO program.” We need not resolve this issue, however, as the origins of the VeRO program are irrelevant for this appeal.
. Defendants also moved to dismiss for improper venue, but the only basis for challenging venue in copyright actions is that the absence of personal jurisdiction in a forum renders venue improper.
See N. Am. Philips Corp. v. Am. Vending Sales, Inc.,
. Of course, even if personal jurisdiction is contested and found initially on the pleadings
*1070
and by affidavit, it may be reviewed again at subsequent stages in the trial court proceedings as evidence accumulates.
See FDIC v. Oaklawn Apartments,
. New such solicitous rules apply in the district court when personal jurisdiction is assessed in an evidentiary hearing or at trial; in such cases, the plaintiff generally must establish, by a preponderance of the evidence, that personal jurisdiction exists.
Dennis Garberg & Assoc., Inc. v. Pack-Tech Int’l Corp.,
. See, e.g., Kevin C. McMunigal, Desert, Utility, and Minimum Contacts: Toward a Mixed Theory of Personal Jurisdiction, 108 Yale L.J. 189, 189 (1998) (“Ambiguity and incoherence have plagued the minimum contacts test for the more than five decades during which it was served as a cornerstone of the Supreme Court's personal jurisdiction doctrine.”); Christopher D. Cameron and Kevin R. Johnson, Death of a Salesman? Forum Shopping and Outcome Determination Under International Shoe, 28 U.C. Davis L.Rev. 769, 809-15 (1995) (discussing the “mysterious origins” of the minimum contacts test).
. Yet, as a wrongful or tortious act concededly is not necessary in contract cases, one might (as plaintiffs do) ask why such an act would be required in a declaratory judgment action (like this one) that is not itself premised on a question of tort.
. The fact that plaintiffs were represented by counsel during this appeal does not affect the solicitous construction we must afford their earlier
pro se
filings.
See Van Deelen,
. In
Marschke v. Wratislaw,
. Some courts have held that the “expressly aimed” portion of
Calder
is satisfied when the defendant “individually target[s] a known forum resident.”
See Bancroft,
. To be sure, Red Wing Shoe ultimately held that jurisdiction was inappropriate on the reasonableness prong of our due process analysis because of policy concerns unique to the in *1080 tellectual property context, a question we take up in Part V, infra. But for purposes of the relatedness prong of our analysis, plaintiffs’ suit attacks the very type of restraint that Red Wing Shoe held gives rise to a suit seeking a declaration of non-infringement.
