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walkman - 10:22 am on Apr 12, 2011 (gmt 0)
Now Yelp will pay the price for not selling to Google. They will probably be pandalized soon, like other Google Local and Google shopping competitors were. Ask InsiderPages, TheFind, Buzzillions and others how are they doing. A line of code and there goes your competitor!
Of course it's algorithmic, not even a hint or a "man, those sites are..." to the search team :)