Refollow is a twitter application by Orginate Inc. This easy to use application has some really useful filter options. It makes mass follow and unfollow very easy. The interface is very clean and not confusing at all. It is entirely web based and no client to install. No sign-up necessary, you can login with your Twitter ID. Refollow features at a glance: Group by Relationships. Sort by Importance. Explore Twitter Social...