You’ve probably been there yourself. You start a new job, amass a million questions, and have no idea whom to ask. There’s an easy fix for that—if you have an internal social network. Don’t fire off emails or bug your fellow employees; instead, pose a question on the social network. Or search the network, and you’ll probably find your question has already been answered. Indeed, streamlined onboarding of employees is just one benefit touted by those who use enterprise social networks. Here are some other pluses organizations are discovering by encouraging Facebook-like social interaction behind the firewall.