Social Media Search Trends: LinkedIn, tumblr, Instagram, Pinterest

Which of these popular social sites -- LinkedIn, tumblr, Instagram, Pinterest, Groupon -- have generated the most search traffic? And how are search trends shifting for these sites? Google Trends has the Answer.

No real surprise that Pinterest has grown from no awareness to exceeding the others in recent months, but what is surprising is how Pinterest's search trend is now declining. Of the group, only search trends for tumblr have steadily increased.

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