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"As many of my colleagues know, I have not been a big fan of Twitter for academic purposes. Why? The impression I had is: * Twitter is tacky. Great if you want to know what Paris Hilton's dog is up to, otherwise: aahhh, no. * Twitter is unfiltered. Too much chaff, no wheat! * Twitter is too open. Students will be encouraged to let loose, to mix topics, to lose the thread that an instructor can maintain in a more tightly controlled discussion forum In the interest of an open mind, lately I have been exploring Twitter a bit, and while I still basically believe the points above, I have found some uses for Twitter that might be helpful."