Detailed text transcripts for TV channel - KGO - 20121120:10:45:00
>> one jewelry store is paying somebody $200. >> reporter: must be good reviews, huh? >> this is an ongoing cat-and-mouse game. people are always going to try to game the system. >> reporter: a very powerful system. yelp gets more than 71 million visitors a month. now yelp is taking on a new role, detective, using its own undercover employees and a top-secret computer filter to spot fakes. >> this is not acceptable behavior. frankly, it is not just unethical, it is probably illegal. we need to let business owners know you can't go out and try to mislead your consumers. >> reporter: here's how ...
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