We all know that Twitter is big and it’s changing every day in matters of users, quantity of tweets and trends, but only some (a few number) can realise how big really is and the details of the changes. Most of the Twitter users know parts of the system as they follow and interact with less than a thousand of other people, but even in this case the quantity of messages and tweets can be too much for a people to handle alone, with no tools available. It should stay online, conected to Twitter, all the time and it would definately fail after a time.
Fortunately there are a good number of methods and application to filter the followers and their content. In Twitter you can filter followers in many ways: there are groups formed on the basis of to the people whom you are connected and those people to whom you are connected. In both categories you can make groups further to organize your work properly and you can filter the unwanted user from your account.