Pinterest is the great new thing. While it may seem completely pointless, it can be used to promote your brand in a new exciting way. Below are some articles to help you get started.
56 Ways to Market Your Business on Pinterest via copyblogger
13 Ways to Get More Pinterest Followers via Search Engine Journal
3 Ways to Use Pinterest for Marketing Research via Social Media Explorer
And, of course, there is an infographic (via Daily Infographic).