According to marketing and analytics firm Piqora, who just completed a nine-month study of more than 1,000 brands in Pinterest, each pin is worth about 78 cents in sales, a 25% year over year increase. Each pin drives two site visits and six page views, and is repinned about 10 times. The average pin is 100 times more viral than a tweet. And brands with a rich pin integration see an 82% jump in repin/pin ratio. These stats are important for brands to consider, particularly in light of PInterest’s recent API release. The virality of pins, in combination with their sales drive, means that if you’re not already taking the site seriously you need to consider its worth as high as – if not higher than – even Twitter.