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Facebook Inc. and Google Inc. logos are displayed on computer screens in this arranged photo in New York, U.S., on Monday Jan. 30, 2012. A Facebook IPO would provide funds to help the social-networking service maintain its expansion and fend off competition from Internet rivals such as Google Inc. and Twitter Inc. Photographer: Peter Foley/Bloomberg via Getty Images

Facebook Inc. and Google Inc. logos are displayed on computer screens in this arranged photo in New York, U.S., on Monday Jan. 30, 2012. A Facebook IPO would provide funds to help the social-networking service maintain its expansion and fend off competition from Internet rivals such as Google Inc. and Twitter Inc. Photographer: Peter Foley/Bloomberg via Getty Images