O’Reilly on Twitter (he really, really likes it and so do I)
Like Tim O’Reilly I was an early joiner on Twitter who initially found it useless but now find it indispensable. He pretty much covers the territory in this post.
I’d add that Twitter may become the primary B-B marketing platform in social media. As he notes, its simplicity actually makes it more powerful that feature-laden sources like LinkedIn (which I also use more and more frequently as my social network of choice).
You can follow me on Twitter @martinedic
And connect on LinkedIn at http://www.linkedin.com/in/martinedic