http://arstechnica.com/tech-policy/2012/10/a-supreme-court-clash-could-change-what-ownership-means/
Could bring down Ebay, and the selling of used books on Amazon, and reselling goods on other sites. Book publishers who sell their textbooks for astronomical prices in the U.S. but much cheaper in other countries are suing entrepreneurs who import the cheaper but identical books and sell them for less.
At issue is whether you own the stuff you buy. The book publishers want to prevent resales, because they "lose" money they think they could grab if reselling is forbidden. A textbook publisher I write for usually pays me for my writing but also sends me a case of the books when published, each book marked in large letters "not for resale!" What the hell am I supposed to do with an entire case of books I don't need and can't sell? It seems to me that if I give them away, the publishing company loses out anyway, because that's a few more people not buying their book.