Twitter is one of the most popular social networking site out there. About 500,000 people sign up on it everyday. People usually have a lot of followers and also follow a lot of people themselves. This simply means a lot of noise, which can be quite annoying. The good news is that a lot of good tools are present out there that will help you cut through the noise and get to the most useful things. So here is a list of 10 useful tools and apps for Twitter users that will help them use Twitter more efficiently. Check it out: