Facebook revenue smashes expectations as mobile ad sales surge

(Reuters) - Facebook Inc's quarterly revenue rose more than 50 percent, handily beating Wall Street expectations as its wildly popular mobile app and a push into live video lured new advertisers and encouraged existing ones to boost spending. Facebook also announced a proposal to create a new class of non-voting shares, which would be given as a dividend to existing shareholders. The dividend of non-voting shares would allow Chief Executive Mark Zuckerberg, who plans to give away the majority of