I'm on Facebook, Twitter, Linkedin, Github, Youtube, Shapeways, Memrise and who knows where else.
Some cool people: Ted Nelson is digital media's Cassandra, Bret Victor knows how tools should fit the mind, Greg Detre knows how to hack your brain. Thomas Persson has taste. My hopes are on Danielle Fong. Hans Rosling and Jan Chipchase seem to understand the world.