Saw an announcement today about http://www.ceas.cc/, the "First Conference on Email and Anti-Spam (CEAS)", to be held July 30-31, 2004 in Mountain View, CA. Speakers include Larry Lessig and Hal Varian. Early registration closes June 30 (day after tomorrow): $250, or $175 for students. After that date it is $325 / $225. There will be a special panel on "Payment for Anti-Spam: Time, Money, and Puzzles". Here is the information on that panel: > If the fundamental reason for spam is that email is practically free, > then the solution is to raise the price. There are many ways to charge > people, including time, money, and puzzles. Computational approaches > require the sender's computer to solve a time-consuming problem. Monetary > approaches require the sender to pay actual cash. Puzzle approaches like > HIPs (Human Interactive Proofs) and CAPTCHAs require the sender to prove > a human is in the loop. This panel will include at least one advocate > of each approach, and a devil's advocate against them all. > > Moderator: Tom Berson, Anagram Laboratories > Panelists: > Cynthia Dwork, Microsoft Research > Philip Raymond, CEO Vanquish > Richard Clayton, University of Cambridge > Brian Wilson, CTO of MailFrontier (producer of Matador) > Ambika Gadre, Director of Product Marketing, Information Services, > Ironport System (producer of Bonded Sender.) Hal Finney