Yahoo faces new competition from QuadrantOne ad network
 

As if Yahoo didn't have enough uncertainty to contend with right now, three of the largest newspaper chains in the country have launched a new company called QuadrantOne, which may both compete and overlap with Yahoo's online ad network. Spearheaded by the Hearst, New York Times Corp., Tribune, and Gannett newspaper companies, QuadrantOne will reportedly focus on selling display advertising, one of the very strengths Yahoo is touting for itself in an attempt to ward off acquisition by Microsoft.

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