How can I encourage students to use Twitter, although only 140 characters, to make thoughtful comments, rather than gossip and drivel?

FORBES: Colleges Shouldn't Be Jittery About Students Who Are Twittery

"From the conversation I had with him I don't see how he could have, to make the kind of authority of statement he is making from the comments that I made, " Kelly told the committee.

CNN: Heads to roll over Kelly death