This week’s headlines: Pinterest Launches First Promoted Pins Campaigns, Twitter Rolls Out Mute Button, Yelp Launches Reservation Tool and Foursquare Launches Swarm.

The week’s news quick hits: Facebook Removes Poke and Camera from App Store, Facebook Considering New Sales Office in China, Facebook Tests Context Cards, Google Glass Gets Foursquare and Pinterest Valued at $5 Billion.