What is your favorite Twitter application/add on?

[Thao Ly]

What other Twitter related add-ons/apps or desktop clients do you use?

Twitter Web Add Ons
Qwitter to see who has unfollowed me http://useqwitter.com/
Mr. Tweet- find Tweeples similar to you http://mrtweet.net/

Desktop Twitter Client
TweetDeck http://www.tweetdeck.com/beta/
Digsby http://www.digsby.com

For the entire list of Twitter add ons, apps and more...go here
http://twitter.pbwiki.com/Apps

[ragnarokfinis]

I am currently on my itouch so I like to use twitter applications for it. I use twittilator pro for the itouch, and twitfox for my firefox browser. I like both.

[One More Lesbian]

Great resource. Many thanks!

[Iván Abrego]

I love twhirl and sometimes use tweetdeck

[Keith]

I like twittilator and Tweetie on my iphone..although, twinkle is really awesome too! On my Laptop I use Power Twitter...really liking it a lot..has the "peek" feature which I really enjoy.

[SistersTalk]

I use www.FriendorFollow.com to manage my followers list. It's a great tool. Check it out!

[SistersTalk]

I use Twitterberry for my BlackBerry.

[Kevin]

I love Twinkle on the Iphone

[YaelD]

I use twitteriffic and Halo 3.1 on my iPhone and I've just discovered TweetDeck for my laptops. The fact that I need two apps on my mobile, leads me to the idea of building my own app, with all the features I need - just how difficult can it be? ;0)

[Peter C. Frank]

I'm going to have to go with Twitbin for Firefox ( http://www.twitbin.com/ )-- I complained about a few features and they actually listened to my complaints and fixed a few of them (they're still working on others). How fab is that!

[Thao Ly]

For the PC I use Tweetdeck & Digsby
Web apps: Mr. Tweet and SocialToo
Iphone: Currently testing out Twitterfon & Twitterific

http://twitter.com/thaoly

[Alan and Eric]

I have tweetdeck and I like it, but I find that for my usage habits twitterbar is often more convenient. It is a FireFox add-on though so it won't be of much use if you still browse with IE. Any die hard IE fans still out there?

[jaysays]

I love the script with Firefox Grease Monkey and the Google live search of twitter thingy (I'm obviously a technology guru eh?). Essentially, I search google and the first set of results are from twitter. That comes in super handy!