Professor Annemarie Bridy's article, Internet Payment Blockades, has been accepted for publication in the Florida Law Review. Internet payment blockades are the fruits of a long-term, evolving strategy on the part of corporate copyright and trademark owners to leave no intermediary behind when it comes to online intellectual property enforcement. Where judicial and legislative efforts failed to yield any binding public law requiring payment processors like MasterCard and Visa to act as intellectual property enforcers, “non-regulatory” intervention from the executive branch secured their cooperation as a matter of private ordering. The resulting voluntary best practices agreement prescribes a notice-and-termination protocol that extends the reach of U.S. intellectual property law into cyberspace, to merchants operating websites from servers and physical facilities located abroad. It also removes adjudications of infringement claims from the courts to the private sector, which raises issues of fairness and institutional competence. Like other forms of regulation by online intermediaries, payment blockades can be circumvented with the aid of disintermediating technologies. True to the Internet’s founding purpose of redirecting data flows around blocked or damaged channels, P2P virtual currencies like Bitcoin are empowering online merchants and their customers, at least for the time being, to run payment blockades. A draft of the article is available on SSRN.