Waze There's a social media site for everything these days...including traffic. Commiserate with your friends on Waze. (Select "frustrated" from the mood section, if you want to give your car a red face and a frown). Use messaging to tell everyone how you really feel. Waze uses a voice-activated GPS system to help you navigate your way around town. Share your location on Facebook ( FB) or use the app to carpool by sending a "location request." Stay away from the Wazes with the "zombie" faces. You can also use the app to find the nearest gas station, look up Yelp ( YELP) reviews or avoid accident scenes. And no worries about wasting time behind the wheel. You'll rise to the top of the scoreboard when you log the most driving time. You know you've made it when you're Waze Royalty; your avatar gets a crown. This free app is compatible with iPhone, iPod touch, and iPad, but requires iOS 4.3 or later. It is also available for Android.