Comedian Bob Monkhouse is twittering "from beyond the grave" to solicit contributions for the Prostate Cancer Research Foundation. Monkhouse died in 2003 of the disease. Bob, who is said to be the only dead person on Twitter, already has a sizeable and growing following. The tweets are a mix of Bob's jokes, news about the charity and the research it funds, and the occasional solicitation. You can see his twitter page @bob_monkhouse or by going to his Internet site. Announcement