David Blumberg Speaks at the 140 Character Conference
David Blumberg speaks on the topic "A Look At Twitter Services, Apps and What's Next" at the 140 Character Conference, June 17, 2009. Watch the video
Blumberg Capital
David Blumberg speaks on the topic "A Look At Twitter Services, Apps and What's Next" at the 140 Character Conference, June 17, 2009. Watch the video
