Pearl raises cash, leads move to paid answers

SAN FRANCISCO, June 19 (Reuters) - What types of online
information services can make money by charging fees rather than
relying on advertising?

Source: http://www.reuters.com/article/2012/06/19/venture-pearl-idUSL1E8HI7RP20120619?feedType=RSS&feedName=vcMedia&virtualBrandChannel=10109

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