Twitter: To Follow Back or not To Follow Back? How to Decide!

Ever since the beginning of time, (or at least the beginning of Twitter, but who remembers a world before Twitter anyway?), the big question that has occupied Twitter users around the globe is, how to decide who to follow on Twitter. There used to be a pretty solid way to find new people, but then Twitter canned it. There are of course countless directories online for the Twitter community, but I have never found any of them to be too interesting or relevant.