Interesting article in today’s Bloomberg:  Professors Get an "F" in Copyright Protection From Publishers, by James M. O’Neill:

U.S. college professors are flunking basic copyright protection law. Book publishers say professors who post long excerpts of protected texts on the Internet without permission cost the industry at least $20 million a year. Cornell University, the Ivy League college in Ithaca, New York, agreed in September to regulate work its faculty puts on the Web, in response to a threatened lawsuit from the Association of American Publishers. Professors are making material available free rather than requiring students to buy $100 textbooks. While faculty members from Harvard University to the University of Pennsylvania complain of a restricted flow of ideas, publishers say they must protect $3.35 billion in annual U.S. college textbook sales.