Google is the second-largest recipient of the 34% WPP Group spends on digital media. The total investment in media amounts to $72 billion, reports TechCrunch, citing WPP CEO Martin Sorrell at a Financial Times conference in the U.K. The media agency spends about $2 billion for the quarter with Google, and the company will soon "overtake the single biggest beneficiary." AOL and Yahoo each get around $400 million to $500 million in ad spend. Facebook only gets around $270 million, and Twitter receives much less.