If you check the profile of all your new followers on Twitter, you'll notice that many of your followers are just trying to get as many followers as possible by following a lot of people and expecting that they will be followed back.
So I was wondering here, how many real followers do I have? To answer this question, I've made this simple tool in 5 minutes to check that for me. This tool will only consider someone "real" when they follow less than 100 people or they follow twice as many followers as they have, at maximum.
So check it out and tell me what you think... ;)
Update: Some Twitter API responses has changed. Code fixed now!