Twitterers are cold, unfeeling birds...

This Science Daily article discusses a forthcoming article that "raises questions about the emotional cost—particularly for the developing brain—of heavy reliance on a rapid stream of news snippets obtained through television, online feeds or social networks such as Twitter."(citation: "Neural correlates of admiration and compassion." By Mary Helen Immordino-Yang, Andrea McColl, Hanna Damasio, and Antonio Damasio. Proceedings of the National Academy of Sciences, Vol. 106, No. 16, April 20, 2009)  I was alerted to it through Clay Shirky's Twitter feed