(Help me reach 100-- consider donating to http://www.Patreon.com/thetednelson) Marc Weber, of the Computer History Museum, has been holding a seminar called (rather strangely) "Evolution of the Online World and Mobile" [sic]. Participants in the seminar include a number of eminences, including Elizabeth "Jake" Feinler (famous for choosing the term ".com", which she denies). and professor Jim Whitehead of U.C. Santa Cruz. Invited by Marc to speak to the seminar about systems of payment, I use this as an opportunity to discuss the Xanadu plan of the 1979s, and our unique integrated design for allowing authors to charge for content and quote each other freely. Classic Xanadu was intended as a commercial hypertext system with a unique approach to payment. We designed it in 1979 and it was nearly working in 1988, when it was derailed and development stopped. The Xanadu copyright method would allow any text to be quoted in any amount without negotiation, and would pay each author in proportion to user download. (Explained in this video.) RELATED VIDEOS AND PAGES-- Parallel documents, explained in "Xanadu Basics 1a"-- https://www.youtube.com/watch?v=hMKy52Intac The "Pale Fire" demo demonstration video, showing a recent implementation of parallel hypertext-- (developed with Edward Betts in Cambridge, UK)-- https://www.youtube.com/watch?v=E43Khbai-TE A working demo of the payment system (developed with Edward Betts in Cambridge, UK)-- watch the video "New Game in Town" (10 minutes)-- https://www.youtube.com/watch?v=72M5kcnAL-4 The transcopyright license, allowing everything to be quoted freely-- http://xanadu.com/xuTco.html