How Much Do You Think Twitter Is Worth? How about a Half-Billion Dollars [GigaOM] – socialnetworksguru.tv 07/30/2009 Thursday, July 30th, 2009 by William Lark 0 Add a CommentIf Facebook is worth upwards of $5 billion, then how much do you think Twitter, the San Francisco-based micro messaging start-up is worth?See the original post:How Much Do You Think Twitter Is Worth? How about a Half-Billion Dollars [GigaOM] RSSdoodle by The Lessnau Lounge .