We all know by now that Google is the undisputed leader of search engine traffic, netting more than a billion unique monthly visitors. But do you know which website holds the number-two spot for search-related traffic? Here's a hint: It's not Bing. It's not Yahoo either. In fact, most people don't even consider this site to be a search engine at all. But its integrated search network and highly engaged users make it one of the most powerful marketing tools available - yet to date very few builders have taken advantage of this resource.
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