1. Klout : Klout is a tool to measure the influence of Twitter users. The tool tracks reach amplification and influence. The Klout score is on a 0 to 100 scale. The tool provides great insights when trying to identify key users.
2. Twitter counter : Is my tool of choice to track the growth of accounts. The tool also lets me track the volume, growth and hints towards influence that users have.
3. Refollow : Refollow is a follower management tool. I use it to clear out inactive users and to follow interesting people that are following me. I personally follow people because the user adds value to my stream, if an account is inactive it cannot do not add value.
