Pinterest intros Place Pins so you can map out all the places you'll go

Pinterest doesn't want to just be the place you hoard random internet goodies, or aspirational items for hobby boards -- it wants to become a real social tool. And it's doing that today with Place Pins: private or collaborative travel maps highlighting local places of interest and recommendations. If it sounds like Foursquare without the obnoxious check-ins and "Mayor of..." notifications, that's because it is -- the company's API is powering these pins. Maps loaded up with recommendations for g...