Twitter applications can be called by different names. They are sometimes called as “twitter tools”, “twitter add-ons” and the likes. But whatever the name they are called, they are simply websites which have built-in scripts that complement Twitter.

Twitter is a status-updating or microblogging social networking website. It is a breakthrough in social networking because it takes communication into another level. Before, a person can only update his status at a certain time. But with Twitter and its mobile integration, he can update his status almost all throughout the day and get in touch with people that matters to him the most.

But the functions of Twitter do not stop there. It is now used by various fields. Business, for example, has used Twitter to get in touch with customers on a personal level. It is also a nice place to meet people from different parts of the world that shares the same interests. Furthermore, its possibilities to promote new technology, news and products can’t be denied.

Here are some Twitter directories and user search tools that help you find tweeters like you:
Just Tweet It
A twitter directory sorted by interest
Twubble
This tool will automatically find people who are compatible with your interests. However, if you follow too many people, then Twubble may recommend some people that you already follow
Twittie Me
Search for similar users and advertise your twitter page
Twitdir
Search for words in usernames, locations or descriptions
We Follow
Follow people through popular tags
Twellow
Find people by area of expertise

Here are some sites that tell the latest stories and trends on Twitter:
Twitscoop
A search tool that tracks trends as well as certain events.
Trendistic (previously Flaptor Search)
A search tool that can be installed on your browser.
Tweet Scan
Search keywords on Twitter
Twitterment
Search Twitter users and topics
Tweetmeme
find out the latest Stories on Twitter
Twistori
Find out what twitter loves, hates, believes, etc.
Twitturly
Find out the most talked about stories on Twitter
GoodBadMe
Keep track of the good and bad on the twitterverse
Favotter
Find out the most favored (saved to favorites) tweets

Here are also some Twitter Links :
Twitter Buzz
See the most popular links on Twitter
Link Bunch
Share more than one link on Twitter
Tweetwire
Sorts out links posted on Twitter into news format
Twitterlinkr
Find out the latest links posted on Twitter
Twitturls
Find out the latest URLs posted on Twitter
Twitter Split
Change the way you post links by adding your domain on the beginning of the link

Concerning all about followers and following, here are some features that track your followers as well as your own following behavior:
Tweet Wheel
Find out which of your friends know each other
Twitter Karma
Find out who is following and unfollowing you. Have a mass follow and unfollow tool.
Twitter Snooze
If you have noisy twitter friends, you can snooze them for a certain time so you won’t receive their tweets.
My Tweeple
Evaluate your followers through the number of dings (recommendations) they have from other Twitter users
Less Friends
Find out who unfollowed you using this tool
Qwitter
Receive the names of the people who unfollowed you via email.
Does Follow
Tells you if a certain follower is following a person or not
Twitterless
Receive a direct message when someone unfollows you
Twitter100
Find out the latest 100 posts of your followers
Twitterator
Follow a list of people all at once
Twitter Who
Invite lots of people in one go
Twitterlex
See your last 30 tweets along with your friends. Use on Mac.
What’s Up?
Find out what people are up to

Here are tools that can integrate Twitter to your site or blog:
Add Tweets
Make Twitter Update Widgets for site or blog using javascript
Twitterfeed
Post your blog to Twitter through your RSS feed
Feed Tweeter
Integrate Twitter with Plurk, your blog and delicious
Twitter Counter
Display your follower count on your site or blog.
Twit This
Add this option so people can easily tweet information from your site or blog
Twitter Tools
A wordpress plug-in that lets you integrate Twitter with your blog. You can send your updates to your blog as well as create tweets directly from your blog
Twitter for WordPress
Displays latest tweets on your blog
Loudtwitter
Ships your tweets to your blog
Twitter Sharts
‘Shart’ your twitter status anywhere within your wordpress blog posts or pages
Twitt Twoo
Plug-in that will allow you to update your Twitter status right from your blog’s sidebar.
Twitter Updater
Automatically sends a Twitter status update to your Twitter account when you create, publish, or edit your WordPress post
Twitter WordPress Sidebar Widget
A wordpress widget where you can send your tweets to your blog
WordTwit
A plug-in that utilizes the Twitter API to automatically push a post to your Twitter account when it is first published.
Comment Twitter SMS Notification
Plug in to be notified by SMS when a user post a new comment on your blog.
Stammy’s RSS To Twitter
Not too many people have access to a Ruby-enabled server so the author decided to make a simple PHP script to get the job done.
PingTwitter
Automatically update your Twitter Account when you publish a new blog post

Twitter is really an innovative way to interact with other people. Twitter has been used by companies, bloggers and agencies to promote their brand. Using Twitter applications, such ideals are only of some clicks on your unit.