With new Twitter apps springing up every day here's my attempt to make sense of them all. I've used Alexa to rank the most popular sites.
The top 25 Twitter web apps:
Twitpic - share photos on twitter
Twitter Grader - grade twitter users by reach / popularity
TweetLater - automation tools
TwitterCounter - tracks the number of followers and friends
Twitter Fan Wiki - a fan wiki for twitter
Twitterholic.com - stats about top users
Twellow - the twitter yellow pages
FriendOrFollow.com - see who's not following you back
TweetMeme - tracks hottest links
Twitscoop - an alternative interface to twitter
TwitThis - tweet a page
Twitter Karma - check your karma
#hashtags - trends topics
Mobypicture - send pictures to twitter
twtpoll - create twitter polls
Twitdom - a apps listing
Splitweet - web client for handling multiple accounts
tweetburner - track the links you tweet about
twibs - a business directory
HelloTxt - send status updates to multiple social networks
Twitturly - tracks most tweeted URLs
Tweetbeep - alerts by email
TweetScan - email alerts on certain keywords
Retweetist - tracks trends on twitter
Analytics
TwitterCounter - tracks the number of followers and friends
Twitterholic.com - stats about top users
tweetburner - track the links you tweet about
Twitturly - tracks most tweeted URLs
TwitterFriends - analyse friend networks
TwitStats - tracks twitter client usage
Automation
TweetLater - automation tools
Twuffer - schedule tweets later
Autwito - schedule tweets for later
Web Clients
Splitweet - web client for handling multiple accounts
Splitweet - web client for handling multiple accounts
Tweetvisor - a java client
Fun
twittervision - maps where tweets are coming from
TwittEarth - maps tweets
Twitter Karma - check your karma
twistori - streams tweets matching certain words
Tweeting Too Hard - where all the self-important tweets go to live
The Twitter Tag Project - tag your friends by tweeting them
Awesome vs. Awesome - lists users that have tweeted about pancakes or waffles
Search
Twellow - the twitter yellow pages
Who Should i Follow? - find people to follow
Picture Tools
Twitpic - share photos on twitter
Mobypicture - send pictures to twitter
Twitsnaps - post photos on twitter
Portwiture - links twitter to flickr
Web Tools
TwitWall - post longer messages to twitwal
Twitter Grader - grade twitter users by reach / popularity
FriendOrFollow.com - see who's not following you back
TweetMeme - tracks hottest links
Twitscoop - an alternative interface to twitter
TwitThis - tweet a page
#hashtags - trends topics
twtpoll - create twitter polls
twibs - a business directory
HelloTxt - send status updates to multiple social networks
Tweetbeep - alerts by email
TweetScan - email alerts on certain keywords
Retweetist - tracks trends on twitter
Twinfluence - track influence
monitter - monitor keywords on twitter
Twitterfall - view the latest tweets
Qwitter - track followers that leave you
DoesFollow - find out who follows whom on Twitter
CoTweet - a business twitter tool
Twitrans - translate tweets
Twiturm - share music on twitter
Twitlonger - send longer than 140 character messages
Tweepler - organize your followers
Twittermail - email to twitter
Twubble - find friends through friends
TweetALink - allows you to tweet links
TweetVolume - track volume of a keyword
twemes - tracks tags
GroupTweet - group messaging over twitter
Tweetknot - build communities
TwitterSnooze! - filter updates from certain friends
Twitter Answers - find answers to questions
Twitterchat - a shoutbox for twitter
Tweeterized - create image signatures
TweetApp - collection of twitter apps
Tweet Convo - view twitter conversations
Mobile Software
PocketTweets - a client for the iphone
Movatwitter - A japanese client
hahlo - a mobile client
cetwit - a mobile client
twittai - java mobile client for twitter
Twitxr - share pictures from mobile phone
Twapper - mashing 30boxes and twitter
Widgets & Gadgets
What's Up - a desktop gadget
Twadget - a sidebar gadget for vista
Desktop Clients
spaz - an open source twitter client
TweetDeck - a desktop client
Snitter - a desktop client
Twitterrific - a desktop client
Tweetr - a desktop client
TwitterPod - a desktop client
TwitBox - a desktop client
Digsby - a multiprotocol desktop client
Twitteroo - a desktop client
BeTwittered Info - a desktop client
MadTwitter - a desktop client
Twitterlicious - a desktop client
twhirl - a desktop client
Pwytter - a desktop client
Twit - a non-english client
Browser Extensions
TwitterFox - a firefox extension
Twitbin - a browser extension for firefox
BigTweet - tweet about the web sites you're viewing
twittit - tweet links
Other Desktop Software
Twit4Live - a plugin for live
twessenger - plugin for windows live messenger
Twitter CLI - command line for twitter
Klipfolio - Latest updates and information
TwitterYM - yahoo messenger status twitter updater
Listings Sites:
Twitter Fan Wiki - a fan wiki for twitter
Twitdom - a apps listing
Twittown - a listing of apps and widgets
Twapps - archive of twitter apps
TweetFan - listing and reviews of twitter apps
