Yahoo's Brand Universe
Well, it's now trying to moneterise these sites by partnering with “passion brands” to generate advertising revenue. Yahoo! will build what it calls “brand universes” which are essenially community sites focussed on a single brand or product. Yahoo! will build the sites for free and incorporate the likes of Flickr and del.icio.us into the product. Yahoo! search will drive enourmous amounts of traffic to the sites.
Nintendo have been the first to use these brand universes to promote the Wii console.