Yelp out tonight, as the party-hearty local ratings service puts on its holiday shindig at the Yerba Buena Center for the Arts. Remember how much fun last year's party was? That and more in tonight's Valleywag Calendar.

• Peace, Love, and Yelp tonight at the Yerba Buena Center for the Arts in SoMa as rating site Yelp throws a holiday bash. Hoi polloi need not apply, but Yelp users welcome. [Yelp]
• Music startup Sonic Living hosts a bash at Harlot. Free raspberry lemon drops from 9-10 p.m. [Sonic Living]
• In what sounds like the most boring get-together for the entire month of December, WorkIt.com has a networking event with "Entrepreneurs and Founders * CEOs and CXOs VPs and Directors * Influencers and more" at Tech Mart on the Great American Parkway in Santa Clara. [WorkIt]

Got a to-do that's a must-do? Send it to calendar@valleywag.com. Check out more events on our Google Calendar: