I'm not sure what all this 'visual search engine' craze is about, but two things are for sure: companies like the idea, and from the ones that already exist, you could say there's a lot of developing needed. Well, Riya's turning into one. It'll still of course be a facial-recognition-photo-sharing tool, but with a tighter focus on the visual search engine part. They've begun crawling the web already, Munjal Shah (CEO of Riya) has more on his blog .
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http://www.rev2.org/2006/11/09/riya-releases-visual-image-search-likecom/ Riya Releases Visual Image Search Like.com – rev2.org
