Metafilter is often mentioned in the same breath as BoingBoing by sources such as the New York Times, which reported in their piece on leading bloggers: "Every e-mail discussion list, Web bulletin board and group blog is an example of collective intelligence at work. Do you want to know where 'memes' start? Try the group blogs www.metafilter.com and boingboing.net" (Circuits, 8/12/04). MetaFilter attracts 1,900,000 monthly uniques (50,000 of his readers are registered contributors to the site) and has links from over 172,000 other sites (Google).