I had a rather amusing thought just now. Why doesn't Twitter have more followers on its Twitter account? It has just over 4.4 million followers and about 1,000-and-then-some tweets for a service that touts more than 75 million users. That's pretty shoddy marketing if you ask me.
If I were Twitter, I would have integrated how to add a follower (using http://twitter.com/twitter as a live example) to the how to get started steps for new Twitter accounts. Or better yet, pull a MySpace and have everyone follow Twitter at the inception of their account. No?