Twitter

[|How can twitter increase communication in online classes?]
http://professorjoosten.blogspot.com/2009/11/how-can-twitter-increase-communication.html

[|How can twitter be used in blended and f2f classes, in particular, large lecture?]
http://professorjoosten.blogspot.com/2009/11/how-can-twitter-be-used-in-blended-and.html