Facebook and Twitter have proven to be successful entries in to the web universe, though some wonder if they can reach their true potential. These sites depend heavily on advertising revenue to support their profitability. This has left many wondering if they will be able to take down the reigning champion of online advertising, Google. It may take some time to determine whether the sites will be able to move in on this territory.
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Can Facebook and Twitter Dethrone the King of Online Advertising? – Wall St. Cheat Sheet