I came across this article, and thought that some might find it useful...
6 Effective Ways to Make Money On Twitter
http://addicted2success.com/success-...ey-on-twitter/
It's got some good ideas, in case you want to use Twitter to help market (and even get ideas for) your business...!
Meanwhile, I've been a bit more active on Twitter lately myself (look for @sowpub)...
Best wishes,
Dien