Foursquare has just hired Liz Ritzcovan as Chief Revenue Officer. Ritzcovan hails from BazaarVoice, where she also served as CRO. She previously held CRO positions at Sizmek and Parade Media Group, and before that, spent time at Yahoo, Time Inc, and Interbrand. Though Foursquare has been around since 2009, things have changed a lot for […]