This one has a short time span, but I see TwitChange having a long afterlife and other events. The premise is you bid, for charity, to win your favorite celebrity to follow you.
The only global celebrity auction where Twitter users can bid to get three things: be followed by their favorite celebrity on Twitter, retweeted, or mentioned by them in a special tweet!
The list of celebrities is growing, all with variances in how they will handle you if you win. Some will follow for a certain amount of time, throw a retweet of yours or just mention you. Heck, you might even get lucky and make a friend along the way.
All proceeds from the TwitChange celebrity auction will provide aHomeInHaiti.org the means to ﬁnish rebuilding the Miriam Center.
So since this goes to charity, I would suggest you give it a shot and make a bid. Even if you just want to donate to charity.