ReFollow.com is a website you can use to see how your followers / the people you are following relate to you, who are they following or is following them and you can use it to easily manage your followers / following in bulk, based on different criteria.
Among the ReFollow.com options are:
- Find out who has not tweeted in a certain time
- People following you / you follow / who you follow but are not following you back / locked users / Twitter users with no picture and many other filters
- Advanced details about all of the above
And of course, you can perform some actions on the people selected using the above criteria: follow or unfollow.
To make sure ReFollow has loaded all of your followers / people you follow, click on the "Load more or all" under the "Show me" menu on the right: