All the mentions of Pinterest are spot-on.
ESPECIALLY if you happen to be selling something online.
While it's not a matter as simple as putting up a bunch of boards with your inventory, Pinterest is a huge revenue-driver, and should really be used by everyone and anyone trying to sell online.
The key, though, is remember that Pinterest is about LIFESTYLE CURATION, and not only about brand showcasing.
Worth noting, though, is the fact that Adobe's research expects Pinterest to surpass Facebook this year, when it comes to the revenue per visit.