SAN FRANCISCO (Reuters) - Facebook's revenue doubled to $1.6 billion in 2011's first half, a source with knowledge of its financials told Reuters, underscoring its appeal to advertisers while it grapples with intensifying competition from the likes of Google Inc. (http://feeds.feedburner.com/~ff/reuters/topNews?d=yIl2AUoC8zA) (http://feeds.feedburner.com/~ff/reuters/topNews?i=k6n0wIzh2Ss:raxiuEfckDw:V_sGLiPBpWU) (http://feeds.feedburner.com/~ff/reuters/topNews?i=k6n0wIzh2Ss:raxiuEfckDw:-BTjWOF_DHI) (http://feeds.feedburner.com/~r/reuters/topNews/~4/k6n0wIzh2Ss)
Reuters