A (Google official) blog post about scraped content on a scraper site. [Site is here (www.arsgeek.org/2008/06/11/duplicate-content-due-to-scrapers/), but link removed as the site may now contain malware.]
But the original does rank first.
Although not in blog search.
(But that appears to be because the post isn’t indexed in blogsearch at all. Because rivva.de is listed in its place?