When you're active on the web, keeping up with all your online accounts can feel like a full-time job. You want your high school friends to find you on Facebook, your co-workers to follow you on Twitter, and business associates to find you on LinkedIn. But there are only so many hours in the day, and too many web sites to check in and update. The good news is that you don't have to hire a personal assistant to update all your profiles. With the right strategy, you can manage multiple accounts with minimal effort. Here's how.