The premise couldn’t be simpler: Browsy transforms Pinterest fashion boards into one’s own browsable shopping catalogue. And what good is an online catalog if you can’t easily make a purchase? Browsy identifies products that people pin and helps shoppers buy them at the lowest price. A simple idea, well executed and for Pinterest pinners who’ve been pining to literally get the goods. Ecommerce engines take many forms. This one is simply and beautifully done.