More than 6 million people mini-blog about their lives on Twitter, including a surprising number of celebrities. Sean (Diddy) Combs recently Twittered about a tantric sex session, a 48-hour juice fast and taking a bubble bath with an Oscar statue. John Cleese has written about his pet chickens, while MC Hammer has mused on the economy ("We just fed the nation 15 [years] of evil soup. Now we're throwing up"). Other celebrities, including Shaquille O'Neal, post actual information about where they are and what they're doing. And they encourage fans to meet them.