A recent article I wrote showed up on a WordPress.com-hosted site, which appears to be scraping content without permission. Can you shut them down? I'd email them but my experience with scrapers is that they don't care, and since the entire site looks scraped I figure you'll need to just pull the plug.
You can see the post they scraped from me at: http://classeed.wordpress.com/2009/12/23/can-a-smartphone-make-you-more-patient/