Upstart Pinterest has been slowly and gradually gaining a large following since its introduction. However, it has been criticized for being too similar to Tumblr.
According to an article by Royal Pingdom, who looked up as many data sources as possible, Pinterest is now getting more buzz and traffic than Tumblr, at least in the United States. Looking up data on Alexa, Google Trends, Compete, Quantcast, Comscore and more, Pinterest consistently ranked higher than Tumblr. To be exact, out of six web analytic data sources, Pinterest outscored Tumblr 4 to 2.
Considering that social media giants like Facebook and Twitter both made in big the United States before going on to turn on the world, businesses, or in fact anyone hoping to reach out to the internet mass, might want to start looking into Pinterest now, if they haven't already.
Source: Royal Pingdom