Pinterest is a new website launched in March’10. Instead of going the traditional way, it used people’s interest as its base.
Login is by invite only for now. You can pin your interests, see and re-pin other people’s interest, follow people having same interest. It do not give the social experience which Facebook gives but its of great use for companies and individual products. They can conduct survey for their products or analyse their products.
There is also one thing I would like to focus on- design. Look at the vertical layout, jQuery plugin Masonry gave it that look. Its kind of nice and new design.
They have APIs for sharing and all. Lets see who comes up with something new using it. Try it, see if you like it.