Twitpic

TwitPic lets you share photos on Twitter. You can post pictures to TwitPic from your phone, our API, or through the site itself. There are also popular twitter clients that have built-in support for TwitPic. (Like Twhirl and Twitterific.)

Tweetscan

Real-time Twitter Search. Find it here - breaking news, consumer opinion, recent blog posts and discussion - the most complete Twitter index outside of Twitter itself.

Loudtwitter

If you also have a blog, LoudTwitter is the bridge that posts to your blog your daily tweets. That way you can keep up to date a broader audience. After all, if you have a blog and a twitter, your blog is probably the core place where you want to be found, tracked, or whatever! LoudTwitter reconcile your twittering with your blogging. Hourrah!

Twitterholic

Our twittastic robots scan the Twitter public timeline for new users to watch. A few times a day, we calculate individual statistics for each user in our database. In other words.. WE”R IN UR TWTTR PAGES, READN UR STATZ. To participate, do what you normally do — twitter constantly — if you deserve to be on the list, we’ll find you.

Twitstat

Real time Twitter Analytics. Want to be in this list? Just follow @twitstat.

Twittercounter

TwitterCounter is a service for Bloggers, Social networkers and other well connected individuals to communicate and track the number of followers they have on Twitter. Add the TwitterCounter to your blog or profile to attract more followers. Also check out our top 100 and add your own name too!

Summize

Summize is now Search.twitter.com. It’s not nearly as good as the original Summize. For example the auto update feature is now disabled. It’s slower and when Twitter goes down, Summize now goes down with it. This is a shame. Summize was one of the best Twitter companion sites around and a personal favorite of mine.

Spaz

Your special Twitter friend. Spaz is the open source desktop Twitter client for Mac, Windows, and Linux. Spaz is a Twitter client for users who value free, open-source software, attractive design, and customizability.

TweetDeck

TweetDeck is an Adobe Air desktop application that is for Mac OS X and Windows. It aims to evolve the existing functionality of Twitter by taking an abundance of information i.e twitter feeds, and breaking it down into more manageable bite sized pieces. TweetDeck enables users to split their main feed (All Tweets) into topic or group specific columns allowing a broader overview of tweets. To do this All Tweets are saved to a local database. The far left column will always contain All Tweets. The GROUP, SEARCH and REPLIES buttons then allow the user to make up additional columns populated from the database. Once created these additional columns will automatically update allowing the user to keep track of a twitter threads far easier.

TwitterFox

The extension adds a tiny icon on the status bar that notifies you when your friends update their statuses. Also it has a small text input field to update your status.

Twitterlicious

Twitterlicious is a Windows application that makes using Twitter more fun. It handles all the hard work, leaving you to read and write tweets with the minimum fuss. Best of all, Twitterlicious is free!

Twitterrific

Twitterrific is a fun application that lets you both read and publish posts or “tweets” to the Twitter community website. The application’s user interface is clean, concise and designed to take up a minimum of real estate on your Mac’s desktop. Requires: Mac OS X 10.4 or later: $14.95.

Snitter

A Twitter client for Mac and Window. Snitter is “Snook’s Twitter”: an Adobe AIR-powered application for twittering. Keeping up with your friends has never been so fun!

Twhirl

Twhirl is a desktop twitter client, based on the Adobe AIR platform. There are a lot more things twhirl can do to improve your twitter experience, and it offers various configuration options to adapt to your personal needs.

Tweetr

For Mac and PC. Send files to your friends, but just dragging any file on to Tweetr. Tweetr will automatically upload your file and when it is done will provide a short url to send to your friends. Use the webcam feature to show off you latest toys, bruise, haircut. To use the webcam click on the camera icon.