Twitdrunk.com – Official home of the “drunk tweet” – Drink, Tweet and Be Merry. Find some Entertaining things on twitter. to visit Twitdrunk.com sorry it was taken offline and cannot work, get drunk yourself instead.

This tool helps you to make twitter affinity groups.

It is World’s first Tweeple driven Directory.

It is Twitter directory for Northern Ireland .

Twitter-Athletes is a directory of verified professional athletes on Twitter.

This is a directory of YA authors, characters, and reviewers, as well literary agents, on Twitter.

RetweetFollow lets you search by keywords in URLs tweeted and to easily follow the retweeters.

TwitLuv.in – find how compatible you are with your friend and follower. Tweet the mathing results and get entertaining retweets from your followers.  to visit TwitLuv.in sorry it is offline.

It’s a new tool Twitter ranking of the most recommended tweeps based on the #followfriday recommendations. Check who recommends you and who you have recommended. @followfridaycom Click here to visit FollowFriday.com

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Want to win free gifts? Then tweet 4 Gifts is the app for you.

Power Twitter – Firefox add-on. Makes Twitter Better. Power Twitter adds features to the Twitter Web interface including:

twitt.it is a simple bookmarklet to tweet faster. On Twitter it adds a RT This! quick command to every tweet. On any other website it gets the selected text, bit.ly-es the url and redirect you to twitter.com ready to tweet. Click Here to visit Twitt.it