launched on March 2010, is a pinboard
-style social photo sharing
website that allows users to create and manage theme-based image collections such as events, interests, hobbies and more. Users can browse other pinboards for inspiration, 're-pin' images to their own collections and or 'like' photos.
Now it's the third most-visited social-networking site in the United States, according to a report released Thursday by Experian Marketing Services, a digital marketing firm.