It could also be or become a ranking/search quality signal in aggregate. Google may also show aggregate +1's in their search results in the future (so social p

It could also be or become a ranking/search quality signal in aggregate. Google may also show aggregate +1's in their search results in the future (so social proof right in the search results): >>And even if none of your friends are baristas or caffeine addicts, we may still show you how many people across the web have +1’d your local coffee shop. http://googleblog.blogspot.com/2011/03/1s-right-recommendations-right-when-you.html http://googleblog.blogspot.com/2011/03/1s-right-recommendati... >>For instance, your +1 could appear as part of an anonymous aggregated count of the people who have also +1’d the same thing http://www.google.com/support/profiles/bin/static.py?hl=en&page=guide.cs&guide=1207011&answer=1047397 http://www.google.com/support/profiles/bin/static.py?hl=en&#...