Pinterest is a website that allows you to 'pin' things to your board. I think it's similar to tearing out pages in a magazine and pinning them to your bulletin board.
when you find things on the web, you simply pin them to your pinterest board. You can also follow other people's board so see what they like and find!
OH and hey if you want to see my Pinterest boards, go over to my side bar (over there on the right hand side), fine the bright red button, push it and it'll take you to MY boards!
Go ahead, check it out!