MonkeyFly integrates some really awesome features to twitter’s web interface. Users can create tweetdeck like columns, upload image directly to twitpic etc. MonkeyFly is available as userscript, Firefox add-on and Chrome extension.

Useful Firefox add-on TwitterBar is now available for Chrome with almost all features and functionality of Firefox version.

Indian version of @big_ben_clock on twitter. TAN TAN TAN TAN

dailyRT aggregates most popular twitter updates.

This site will tell the date you signed-up for your twitter account.

Vidly is a video sharing site for twitter. It is just like twitpic for videos.

Qwitter, the famous twitter tool to know about the people who stopped following you, is dead. But, thankfully we have a much featured tool now : TwitDiff.

Using this Jabber bot, you can post tweets to twitter from Google talk.

Discover who follows whom on twitter and get common friends and followers. Tool to find more relevant twitter users.

Finally, a twapp which makes twitter a much organized and productive tool. TweetKnot has a simple idea – you can create public or private groups on twitter.

Twittas has a tool to predict your followers count on Twitter.

Visible Tweets is a unique way to visualize twitter updates.

twitlookup is a new twitter tool which can lookup dictionary definitions, hashtags, weather information, acronym etc. on twitter.

We use different bookmarking services to save URLs for future references. Also, some services like del.icio.us provide an easier way to share our bookmarks with friends and everyone. How is the idea to use twitter for saving and sharing URLs?
Twitter can serve as a tool to save and share URLs. This can be done by [...]