Robin Hanson's webpage on Idea Futures (summarizing the views and work of the leading theorist of idea futures)
Michael Gorham, Event Markets Campaign for Respect,Futures Industry Magazine, January/February 2004 (offering a summary of some events markets and a brief assessment of the legal issues they raise)
Intellimarket (offering services for closed, enterprise-based idea futures markets)
Kay-Yut Chen's Research (describing research in developing private markets for Hewlett-Packard)