On March 30, Google released yet another innovation to the search results page called “+1”.  The purpose of the +1 button is to allow Google users to show which links they like or don’t like.  This allows searchers, over time, to identify useful and relevant content for their network of friends or contacts, and has, we believe, some importance for advertisers, which we will describe later in this point of view.  This is, at its heart, a direct assault on Facebook’s “Like” button.

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