InstantNightlife

Get a read on the scene at your favorite nightspots before leaving the crib with this new service from an MIT alum that provides weekend updates (by web or text) every 15 minutes, and reports all the vital info: how long the line is, how crowded the bar, whether the dance floor is hopping, and what the dude-to-chick ratio is -- giving you a better idea of whether it's worth your time to go out, or just stay home and sext that stuck up maid.