Student essays, at least the few I've read, are not often what I'd call "intellectual", but under the law they very well might be considered "intellectual property". So I like the fact that some students in Virginia are suing an anti-plagiarism company, Turnitin, for adding their essays to Turnitin's database.
Teachers or schools subscribe to Turnitin's service. They submit student papers to the company, which compares the papers to those in its database (or, I'm sure, to those found with search engines) to spot plagiarized passages.
The students claim not to support plagiarism, but don't want their personal work added to the database. At this point in time, absent other information, I'm inclined to support them.
Thanks to Joanne (see blogroll at left) for the story.