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

Its a new tool Twitter Directory with Twitter Lists – Search Twitter Lists, Businesses, Users, & Celebrities 

TwitComings Get relevant and real-time twitter reactions about your favorite events. Feel free to inform us about your events and let your followers be up-to-date by the events you join by your tweets. to visit TwitComings – sorry – the site was taken offline. TwitComings Get relevant and real-time twitter reactions

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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Gracts.com is an eco-social experiment.

See who you mention on Twitter,

SpellBound for Twitter This Firefox add-on enables you to spell check your Tweets! Works much better than your built-in spell-checker, Just one click install. jundle.com/spellbound-spellcheck-your-tweets/ to Visit spell-bound-for-twitter is no longer online.

It’s a service that lets twitters know how much their twitters are worth.

It helps you to create and host online contests for free which allow your entrants to login via Twitter, Facebook,