Over on our 23 Web 2.0 Things  blog we're maintaining a blogroll as a diary of each participants' work on the 23 things. There are almost 200 blogs! I will be highlighting some of the really interesting posts as I run across them.
Today's is from Siegel's Droppings  and is on how Twitter has to have a critical mass of friends or co-workers to become a useful communications tool. Check it out at Others looking at Twitter .