"Can plagiarism-busting website TurnItIn.com archive complete student papers for use in its detection database? Four high school students claimed copyright infringement, but a federal appeals court says it's just fair use."
Full article here.
Personal aside: My brother is a professor at a local college in the area. He finds this sort of funny business in student's papers at least once every school year. While some of it is easy to find (font, font size, and spacing change throughout the paper), he relies on search engines to check out phrases that seem out of place based on the student's writing. Services like TurnItIn are a valuable resource for educators.