ChaCha Reports Dramatic Growth, 2.5 Million Users

ChaCha reported this morning "among pure-play SMS search providers ChaCha, Google SMS and Yahoo! SMS, ChaCha is the fastest growing service," according to Nielsen:

ChaCha’s 28 percent share of transactions is up from just seven percent in Q2, marking a 300 percent quarter over quarter gain, driven by a 660 percent quarter over quarter growth in overall ChaCha transactions. ChaCha reports that they now deliver 30 million impressions per month and have had more than 2.5 million users since the SMS answers service launched in January.

 The company also reported that it has gained traction among advertisers such brand advertisers as McDonald's and Coca-Cola.

The success ChaCha has had in transforming itself from a great concept but faltering desktop search engine to a mobile search tool, driven by viral adoption, is a great success story.