"A few minutes ago I looked up "anemia" on Knol, with no results. Then I looked up "hair" and got eleven results. The top result is for this article on hair loss, by Rob E. Angelino, Founder Hairlab center for hair restoration. Or so it says at the top. At the bottom it says "Copyright © 2005-2007 United Global Media Group, Inc. All rights reserved". Not sure how that squares with Knol's defaulted Creative Commons Attribution 3.0 License, but it's significant that Mr. Angelino also has collaboration closed on the document."