The players at Twitter
Meet the cast of characters behind the micro-blogging machine.
Kevin Rose, the founder and former CEO of Digg, says he won't spend Milk Inc.'s VC money keeping bad products on life support. More
Fans! Likes! Followers! The social site was supposed to be the Holy Grail for corporate marketers, but the search for that mythic chalice may still be on. More
The Mint.com founder now runs a big part of Intuit and invests in startups on the side. Here, his take on Jack Dorsey's Square and the one investment on which he's glad to take a pass. More
