Twitter Has Spammers, Too

I'm a pretty heavy user of Twitter. I've got a few followers, I pay attention to what a lot of people say, and I know a number of people that follow what I say. I enjoy this new method of interacting with people-- it's been a lot of fun. But, like every other way of electronic communication, spammers were bound to discover it and attempt to exploit it eventually. In the Twitter-sphere, the way spam works might be a bit different than in email, but I'll be darned if it doesn't just jump right out at me, with my background in spam fighting and email best practices.