Are you still struggling to understand what all the fuss about Twitter is all about? Or perhaps you get it, but can't quite articulate to colleagues and clients why they should be building an online presence through Twitter. Why do we need a virtual water cooler any way?
If so, there's a great new Twitter Secrets report over at JoelComm.com (not quite 140 characters, but 30 pages of tips, examples, and resources). The report is free of charge following registration. I've already started sharing it with some colleagues and clients.