For most of 2009, SMS-based, human-powered question-and-answer service ChaCha has made surprising leaps up Nielsen Mobile’s rating of mobile search services. ChaCha, which uses inexpensive freelancers ...
ChaCha, the human-powered mobile answers service, claims it has captured 7 percent of the mobile text-to-search market with a quarterly growth rate of more than 800 percent. ChaCha said it now has ...
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