Four Search Engines Marketers Should Know About

You’ve heard of search engine optimization on sites like Google, Bing, and now even Twitter; the question is, what’s next? Marketers in the digital age need data and content, and there are lots of innovative tools coming out to organize the vast amount of stuff that’s out there.

Here are four search engines that, according to Monica O’Brien, author of Social Pollination: Escape the Hype of Social Media and Join the Companies Winning At It, will be making huge waves in search by 2012.

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