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Long tweets is a new and elegant way to tweet more than 140 characters.

Twitgap.com monitors the twitter-ers and aggregates the most popular tweets. Twitgap.com is also an index which categorizes and tags twitter users according to their profession and interests. It extracts most trending keywords, top tweets and twitter users on hourly, daily, weekly and monthly basis.

Twenth allows you to enter a long message - once you're finished with the message, hit the button "Get Short URL To Post To Twitter" and you'll then be given a short URL that you can then copy and paste to Twitter.

What is Twimagination?
Twimagination is a Twitter app that allows you to share your imagination through Twitter like you used to share your opinions, experiences or media.

With Twimagination you can instantly tweet your short writings such as fiction stories, poems, novels, fairy tales, fantasies, dreams or any other products of your imagination.

This Twitter based website allows users to tweet about what makes their jobs easier.

These tweets and any others containing the growing hashtag of #makesmyjobeasy are then displayed on the website for others to view and benefit from.

Web Twitter client aimed at mobiles. Also works on OSX, Windows, etc in a web browser.

The easiest and quickest way to share videos, audio, pictures on Twitter from your phone or computer. Share your videos , audios, pictures in Realtime

At TheTwittermaniacs you can find several cool and fun Twitter tools

Twext.me sends your Twitter mentions to you via SMS text message. Go about your day and never miss another conversation.

GeoChirp helps you search for people Twittering for specific things in a specific area.