Unfortunately, the title of this post doesn't convey the content very well. I don't really have a better suggestion... Maybe something along the lines of "Finding botnets within twitter", or something.
We've taken a crack at it. If someone can suggest a better title—i.e. more accurate and neutral, preferably using representative language from the article—we can change it again.
My initial reaction to your post was "Wait, these are networks of bots, not botnets." But now I'm wondering. Do botnet slaves typically run Twitter accounts?