When Oprah hefted her considerable bulk into the Twitter bandwagon this week, sending the site's servers reeling with a 43 percent jump in traffic, she was only the latest in a quickly growing list of celebrities to use microblogging to reach the masses. The idols we love to fawn over have begun spoon feeding their thoughts to the masses, 140 characters at a time, over the Web. And if you're a fan of celebrity gossip rags, Perez Hilton, and Extra, you had better grab an account and start catching up. But with such a flood of celebs out there, who to follow? We sifted out our top 10 celebrity twitterers.