Sometimes Twitter isn't that user friendly, hence i went in search of a tool that enables me to unfollow users who weren't following me. Sadly most of them weren't free. I did however come across this neat little tool called JustUnfollow(dot)com. I use it daily, and find it very simple to use. It does however have it's limitations in that you have to upgrade for $9.99/year for unlimited access. Let me know how you get on ....