蜜芽传媒

Rory Cellan-Jones asks leading figures in the social networking world how social media has changed their lives.

Includes contributions from Twitter's Biz Stone, Path's Dave Morin, Foursquare's Dennis Crowley, Bebo's Michael and Xochi Birch, Facebook's Chris Cox, Friendster's Jonathan Abrams, the WELL co-founder Stewart Brand, Community Memory co-founder Lee Felsenstein and writer Howard Rheingold.