To many Twitter users, Twitter is indeed so simple to use, posting updates, follow and un-follow other tweeters. But what if you have inadvertently follow some tweeters that used be the spammers. Now, with a third-party Twitter tool called Tweet Blocker, you’re not only can filter, but also catalog and rank the top spammers on Twitter as well.

Developed by Hashrocket, a Ruby on Rails developer has found a way to identify spammers in the Twitterverse. From a security threat standpoint, Tweet Blocker shows you a spam report which lists all the tweeters that followed you, and most important, your own grade according to this Tweet Blocker.

On the spam report, you’ll find the succinct list (if you’ve many Twitter followers) of the numerical score as well as an A to F grade letter. On top of that, it will be very pleased if your own personal grade is A+, making it obvious that you’re a genuine tweeter and you used Twitter to share something good for the community as a whole.

In fact, there are three (3) main features to the Tweet Blocker interface – check your score, check other tweeters’ scores, and report or block the spammers if necessary. To avoid you from inadvertently block or report the spammers, Tweet Blocker also has a feature whereby you can mouse over to any tweeter in your dashboard and view his / her recent tweets.

However, if there is an instance where your own grade is low, or you know that a tweeter is genuine, but his / her score is also low as well, it’s probably based on the following reasons: The user has not been around for a long time, nor active and does not have a balanced ratio of friends and followers. In other words, if you following a lot of tweeters and you get a small number of followers in return, you’ll get a low grade. Overall, these criteria has somewhat make or break the usefulness of this Twitter tool as I perceived.