ComScore released the list of the 50 most-trafficked U.S.-owned Web properties today, and Pinterest just made the cut. It’s the first time the upstart social network has made the list, but MySpace still came out ahead, securing the 47th spot.

Google websites topped the list, followed immediately by Microsoft and Yahoo sites. Facebook and AOL rounded out the top 5. Amazon and Wikipedia followed.

LinkedIn and Twitter were neck-and-neck at numbers 26 and 27, followed by Yelp at 30.

Tumblr, BitTorrent and Instagram occupied slots 42- 44.