Google Ventures and Vator's newly-launched Startup Sessions will air tonight at 6 pm PST.

Startup Sessions is our speaker series, featuring one keynote speaker who will share his or her startup stories. The three-hour event, held at Google Ventures' Startup Lab, is a casual gathering of techies - entrepreneurs, developers, marketers, investors - who want to get the inside scoop about some of the highest-profile tech influencers. 

Kicking off our series is David Sacks, founder and CEO of Yammer, which was bought by Microsoft for $1.2 billion in cash this past June.