I have been writing about new applications coming out for Twitter here and on Mashable for a while now, but its just not possible to keep up with all of them.

I decided to feature a few each week and get you involved in deciding which application you think is cool.  Now that can mean what you want it to, cool/useful, cool/easy, cool/cool.

Each week I will promote three Twitter tools that either I have found or that have been recommended to me, they won’t be in the same category so this isn’t choose one or the other.

This weeks entries are:

Misko Knows – This allows you to Tweet recommendations for Books, Music & Movies. It includes links to amazon so that you can get more info and buy the recommended item.  Nice use of Twitter.  It is missing a few features that I would like to see, but overall I like the interface and its about as simple to use as the developers could have made it.

 Twitter Karma – This tool allows you to see who you are following, who is following you and where the follow is mutual.  This is a great way for you to manage your account especially when you start to follow large numbers of people.  You can make multiple selections and choose to bulk follow, bulk unfollow those people.  Its a great way to catch up if you have had a sudden influx of followers that you haven’t had the opportunity to follow or a great way to thin out those you are following but are not receiving a follow back.

Think of this as Evite for Twitter. It allows you to post events from your Google Calendar directly to Twitter.  Its a great way to let people know that you are having an event.  Tweetups can be organized this way, after all where better to promote one than on Twitter?

If you havent used any of these tools go take a look and come back and vote.  I am not saying which one I like best yet, Cool Tools Thursday is all about you and your opinion

[polldaddy poll=1073679]