Director, MIT Media Lab. Board Member, Sony Corporation, The New York Times Company, The MacArthur Foundation, The Knight Foundation, The Mozilla Foundation. Co-Founder and Board Member, Digital Garage, an Internet company in Japan. Has created numerous Internet companies including PSINet Japan, Digital Garage and Infoseek Japan. Early stage investor in Twitter, Six Apart, Wikia, Flickr, Last.fm, Kickstarter, Path and other Internet companies.