Twitter cleanup is when you go through your account and skim your followers. You eliminate the ones that are noticeably spam. For those with accounts in the tens or hundreds of thousands, this might be difficult. This could be tedious because Twitter does not like mass unfollow and follow applications.
So, for those with a lot of followers, when is it best? How often should it be done?
The best answer is once a month. Designate 15 minutes to do this as it should not be a chore and really, you can eliminate a lot even in 15 minutes. To do this, skim the profiles for ones not completed or ones that may have spam for their most recent tweet. You can also try applications like Tweepi, SocialOomph, or FriendorFollow to skim through your followers to see who is active and more. Please do take in account that there are twitter monetizing programs like Sponsored Tweets that the users only tweets on occasion, so you really have to decide what qualifies as active or worthwhile seeing in your Twitter stream.
For some people, they are lax in who they allow, but for those focusing on certain niches, it might be best to take a deeper look into some followers to find out if they have anything to say. This might also be an opportunity to connect with people who actually are interesting! It also might be a good time to put together a couple focused Twitter lists.
Remember that sometimes your own followers do look through your follower list. If it is jam packed with spammers, they may even unfollow. They are looking through your followers to find any interesting individuals, which draw in your social networking community a lot closer.
How often do you do a twitter clean up? What are your guidelines? Do you use any specific tools to clean your twitter follow list up?