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Now Playing: 06-12-12 Marketplace Tech Report

Facebook has grown just 5 percent in the last year in terms of unique visitors, according to new research. That's way down from previous years. To make up for the revenue and profit, expect the social giant to become more commercial -- more ads, better ads, and perhaps a way for users to make money as well. Plus, the Robot Roundup: Robots for jogging/chasing, robots imitating cockroaches, and robots following you on Twitter.