Lecture Hall Back-Channeling

emmastory writes "The New York Times is running a story on the phenomenon of lecture hall back-channeling - now that many conferences and universities have wireless access, some people discuss lectures via instant message or weblog as they happen. Although the article quotes an instructor at NYU, I haven't seen much of this in lectures I've attended there. I would guess it varies from department to department, but laptops aren't yet as common in classes as one might think. Either way, some people consider the practice rude, others consider it progress, and good arguments can be made on either side."