Promotes inquiry into and discussion of intellectual, philosophical, artistic, and literary issues, and works for the intellectual and social achievement of society. http://www.edge.org/
Online community known for engaging conversation and intelligent debate. Features more than 260 conferences ranging from technical and specific to abstract and surreal. http://www.well.com/
The first global organization focused on inhabited virtual spaces on the Internet. These spaces are shared in real time by thousands of users and represent a new frontier in the experience of cyberspace. http://www.ccon.org/