Over the past two weeks, as I met with two separate clients, they asked me, "What is Twitter?" I told them that for me it is a network of colleagues and friends. A little business mixed with pleasure. Twitter is certainly much more than its, "What are you doing now?" tagline might suggest. But that said, I thought it was better to show than to tell, so I fired up Twitter on my Treo and asked: "Just showing a few corporate types who have never seen Twitter, any words for read more...