Woah, that's big. This is Pinterest trying to dominate the market, to be the online curated catalog for women. This space has seen a lot of new players, like Fab and Wanelo. And the nature of the product lends itself to network effects that aren't nearly as sticky as FB's and Twitter's, so while they've seen incredibly massive growth, they can't rely on user lock-in to maintain it longterm. But the traction is there, the intent is there, so now they need to rev their engine to red line to dominate. Fitbit's recent round of funding comes to mind.