Sep 11
21
Search AdWords have had +1 buttons since late May, and now the +1 functionality is coming to the Google Display Network (GDN). Additionally, +1 data will serve as a signal of relevance in the AdWords auction — for display only, for now. As with the +1s that accompany text ads, people who see…
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Google +1s On Ads Added To Google Display Network, Will Influence Auction