I was just reading a case concerning a student who in a computer programming course posted his code to the internet. If you are interested in the open access movement, it's worth a read especially the comments of Cory Doctorow on Boing Boing.

See the article here Student challenges prof, wins right to post source code he wrote for course

The kicker for me was a comment made by "ackpht" posted in response

"The prof here was probably motivated by the antique notion that students should do their own work."

I don't know, but that just cracked me up!