Twitter has now become a competition. Ashton Kutcher has challenged CNN in a race to see who can get to 1 million followers first. Ashton's Twitter name is aplusk, CNN's is cnnbrk, if you want to follow either one. I follow both, so I guess my "follows" are a moot point!
P.S. According to Wikipedia, Ding-Dong Ditch involves knocking on the front door (or ringing the doorbell) of a victim, then running away before the door can be answered. The game has been played since the 19th century.