Pinterest is the next big thing and a lot of people still don't realise that yet. It has been growing massively, and at super speed. It's matching Twitter on how many links it provides back to sites, even though Twitter is so much bigger. Pinterest is mainly big in industries related to women, but men are now catching up and the site is appealing to many different audiences. Pinterest is driving more orders than even massive sites like Amazon. If you sell a product which would appeal to female markets, get your product on Pinterest.
You can follow me on Pinterest here.