TweetDeck - to manage multiple account http://twitrobot.com - to send twit at certain interval from a list of Tweet you predefined or from a RSS, also can set Twit schedule http://twitter-friends.com - to compare how you do against other user
I’ve been finding so many Twitter tools and passing them along that it’s hard to keep track of them all. The Twitter tools I want to keep track of are those that monitor, measure, and analyze Twitterers and their traffic. I figured I’d compile them here for your benefit.
Twitter Search – This, obviously, is Twitter’s own search function. You can subscribe to a search via RSS.
TweetBeep - TweetBeep is a “Google Alerts” for Twitter
Tweetscan - Schedule Twitter searches to be sent to your email.
TweetGrid - TweetGrid creates a Twitter search dashboard that updates in real time.
monitter - monittor is a real-time keyword-based monitoring service that lets you watch three columns of keyword streams side-by-side. You can subscribe to them using RSS.
Qwitter - Qwitter notifies you when someone unfollows you.
Spy - Spy tracks real-time keyword mentions in Twitter, FriendFeed, Flickr, Blog Comments, Yahoo News, Blogs and Google Reader and allows you to subscribe via RSS.
TweetWheel - Finds out which of your Twitter friends know each other.
Twitter Charts - Twitter Charts gives you a visualization of when a particular Twitter user is most active. This is an excellent tool to determine the most opportune time to engage a given person.
TwitterGrader - Grades a given Twitter user according to influence. Includes power users by geographic location; suggests who to follow and allows you to check if someone is following you.
TwitterSheep - Creates a tag cloud of all the words in the bios of a given Twitter user’s followers.
TwitterCounter - Provides stats on a given Twitter user and lets you compare that user to two others.
TwitterMeter - Twitter Meter allows you to enter a word to graph its use on Twitter’s public feed.
TwitterLocal - Twitter Local is a desktop app that finds Twitter users within a fixed radius of a city or zip code.
UPDATED 7/04/09: I knew this as going to happen: I would forget some or others would suggest sites that should be added to the list. For that reason, and so I don’t have to mess with my wonderful alliterative title, I’m listing the additions unnumbered below:
Twitter Analyzer - The best Twitter analytics tool I have found to date. Offers a ton of statistics.
Mr. Tweet - A recommendation engine that also provides statistics on your Twitter usage.