If you are a twitter fan and spend much of your time on it, then here are 57 twitter tools that can make you more productive on twitter or could just make your twittering more fun.

1. Twitpaper – Twitpaper is a decorative way to show off your personality to friends, family, fans, and all that follow on Twitter. Twitpaper offers great Twitter themes, Twitter backgrounds, and Twitter layouts.
2. Mixero – A Twitter client that has some great features – create groups, channels, and filtering.
3. FileTwt – A twitter application which allows twitter users to upload a file and tweet about it automatically to their twitter account for free. FileTwt also allow users to send file links as direct messages for sharing private files.
4. TweetPhoto – TweetPhoto is a free photo sharing service for Twitter. The service focuses on creating the best possible user-experience among the applications developed around the Twitter Application Programming Interface (API). TweetPhoto combines a convenient and easy-to-use photo sharing experience with helpful tools that are feature rich and user friendly.
5. TwitVid – TwitVid is an easy way to share videos on Twitter, and get into the real-time conversation tweetstream. You can upload from your computer ,or email video from your mobile phone.
6. Tweepler – Tweepler Is an easy, more enjoyable way of processing your New Twitter Followers. View a list of New Followers and classify them in one of two “Buckets” Follow (meaning you wish to follow them back) and Ignore (meaning you don’t wish to follow them and want to archive them out of the way, reducing clutter).
7. Twitstr – Twitster is a PHP application that lets you display tweets on your own web site from everyone you follow in Twitter. What’s more, Twitster can filter those tweets by a #hashtag giving you the ability to create a Twitter-based group or community on your own site.
8. Twubs – Twubs is a good place to find disparate social media content all in one place. Whether you want to create groups, event pages, content pages, or just seek to find information on your favorite topics, twubs is the place for you.
9. Tbuzz – TBUZZ bookmarklet is an easy way to talk about the Webpages you visit on Twitter. TBUZZ makes it easy to tweet the page you’re visiting or keep track of the buzz around it.
10. FlicktoTwitt – flick.to.twitt is a web tool that allows to upload a photo to Flickr and announce it on Twitter right away. No registration whatsoever is needed on flick.to.twitt, and it’s not store any of your private information.
11. Twtjobs – Twtjobs is a business tool to help job seekers and employers connect via Twitter. You can create your “Twitter Resume” and employers can post a job opening. To apply for a job, you simply enter your Twitter name (and if you have a twitter resume, it will email it to the employer).
12. Twindexx – Twindexx is a way to find the best and brightest of twitter based on recommendations of others and shared interests. You can find the most relevant people to connect with, and see who they connect with and recommend, and who they connect with and recommend.
13. Freetwitterdesigner – Now you can personalize your Twitter background like never before. This tool will help you create free Twitter backgrounds that have the same look and feel as those done by professional graphic designers. It’s easy to use, and best of all, it’s Free.
14. Twitzap – TwitZap lets you slice Twitter into channels of stuff that matters to you. Once your channels are set they will update in real-time, all in a familiar interface. TwitZap is realtime, for real. You don’t have to refresh anything and talking to other TwitZap users is instant, even when Twitter is not.
15. Tweepz – Tweepz is a search engine which helps you find and discover interesting people on twitter.
16. Twerbose – Sometimes you just have more to say and 140 characters simply won’t do the trick. Twerbose lets you post much bigger tweets to twitter. Additional features include post privacy, Youtube embed, manage posts.
17. TwitterLine – Twitter lines shows your friend’s time line Twitter on your browser tool bar (as like as electric bulletin board). it’s also possible to update your status and add/remove favorites.
18. Topify – Topify is a simple service that provides smarter Twitter email notifications. Instead of an email with no indications on the follower, Topify will provide a full user profile. The receiver will be able to follow back by just replying to the email and futher answers to direct messages from his inbox. Topify facilitates the flow of managing and interacting with new followers.
19. TwitterAnalyzer – Twitter Analyzer lets you see all kind of statistic charts about you and your Twitter friends behavior at the site.
20. MicroPlaza – MicroPlaza filters your Twitter timeline and displays the Web pages shared by the people you follow along with all associated comments. Essentially it delivers you a personalized news wire created by people of interest to you.
21. Twesents – With Twesents you can send sweet and cute virtual gifts to your twitter friends. Just pick your gift, choose your recipients, and send it away. Simple as that.
22. tweetj – tweetj was created to help promote the discovery of new music. You can listen to music and discover new people based on the same music taste.
23. Twemessenger – When enabled, Twessenger automatically updates your Messenger Personal Message at regular intervals to reflect your latest Twitter tweet. Because Twitter supports updates via the web, IM, and SMS from your cell phone, you can now update your Messenger status message from wherever you are.
24. Twickie – Twickie is a free service that fetches Twitter replies for you (and gives you an easy way to view and export them).
25. Twitterbackgroundsgallery – Twitter Backgrounds is a unique gallery of Twitter backgrounds submitted and recommended by Twitter users. Get inspired, vote for your favorites or find a designer.
26. Twitlet – Twitlet is a javascript bookmarklet for sending fast Twitter updates. You don’t need to signup for an account for use with Twitlet. Create, drag and start using it under a few seconds.
27. Twttrip – Where will you go next? Share your travel plans with your tweeple, and meet other tweeple traveling to the same place at the same time.
28. Tweet3 – Whether you’ve got one Twitter account or manage multiple accounts (friends, business, another language – the reasons are plentiful), Tweet3′s got you covered. Easily click between profiles and customize colors for each account. Tweet3 is utilizing Google’s powerful charting and map APIs to bring you useful data about your Twitter accounts and URLs that you share.
29. TriggaMe – Organize all your social networks in groups – Create groups for buddies, office, family and more. Post to Twitter, Facebook, Friendfeed, Xing, Pounce, Identi.ca, Plurk, Plaxo, Frazr, Rejaw, Brightkite and LinkedIn.
30. TwTip – TwTip created a bot which fetches all new tweets and picks the best valuable tips for you. With its lovely and simple interface, you can easily find tweet tips in any subject, like Photoshop, Macintosh, and even cooking or health.
31. BubbleTweet – BubbleTweet let’s you add a video message to your Twitter page in seconds. Just click your Twitter username and add a pop-up video message to your page.
32. Twitrans – Fast human translation of your tweets directly from your twitter account by sending RM (Reply message) to @twitrans with the source and target languages and the message to translate. Text will be translated by freelance translators around the world, translation service 24/7 in all major languages.
33. Pingvine – PingVine is a free service that takes an Atom or RSS feed from your blog, lifestream or favorite website and posts it to Twitter, Ping.fm or Identi.ca.
34. Twtpoll – Twtpoll is a simple survey/ poll twitter app. Type in a 140 chars question, type in multiple choice answers, and share it in social networks, or embed it in your blog.
35. Stocktwits – StockTwits is an open, community-powered investment idea and information service. Eavesdrop on what traders and investors are talking about right now or contribute to the conversation and build your reputation and following as a savvy market wizard.
36. Tweetree – Tweetree puts your Twitter stream in a tree so you can see the posts people are replying to in context. It also pulls in lots of external content like twitpic photos, youtube videos and more, so that you can see them right in your stream without having to click through every link your friends post.
37. Hootsuite – Hootsuite lets you manage your entire Twitter experience from one easy-to-use interface. With Hootsuite, you can manage multiple Twitter profiles, pre-schedule tweets, and measure your success.
38. Mytweetspace – Have you ever wanted to completely brand your Twitter Profile but didn’t either have the time or know how to do it in Photoshop or Gimp? With MyTweetSpace you can easily do that.
39. Twilert – Twilert is a Twitter application that lets you receive regular email updates of tweets containing your brand, product, service, well any keyword you like really.
40. Splitweet – Splitweet allows the Twitter users to compose a list of accounts and distribute their tweets, choosing their release in one or more of their accounts. You can also follow your following tweets from all of your managed accounts in Splitweet.
41. Twistory – Add your Twitter backlog feed to your favorite calendar application and browser through your personal Twitter diary, making your Twitter history both fun and useful.
42. Twingr – With Twingr, you can create a microblogging community and communicate with friends and other people that share your same interests.
43. Twootball – Posting on Twootball is very easy, lets say you want to post something regarding the New York Jets, just add #jets to your tweet, and your message will appear immediately on Twootball.
44. Itweet – iTweet 2 Web has a built-in auto-refresh, search and hashtags. Full follow, block, notifications feature.s View user bio, location, URL inline with tweets.
45. Tweetake – Tweetake allows you to back-up your followers, people you are following, favorite tweets, and tweets in general – All with just one click.
46. Tweenky – Tweenky is a web-based micro-blogging ("tweet") client that currently supports Twitter. Tweenky main feature is the Integration with Twitter search (formerly Summize) to allow users to find & track content as it flows through the “Twitterverse”.
47. Twizon – A mashup between Twitter and Amazon. Twitzon lists all the tweets that reference Amazon deals so you can find out what’s popular and hot right now.
48. Twitzu – Having a meetup, get together or party? Now you can blast it out to your Twitter followers. Twitzu creates an event standard for Twitter. Using the site, Twitterers can create an event page for their meetup, party, get together etc. and send it out to their followers who can then RSVP with just a click.
49. Feedtweeter – Feedtweeter is a little service that allows you to link Twitter to your other activities. Basically it’s a system that keeps track of an RSS feed and processes any new items that appear.
50. Chirrup – Chirrup is comment system which uses Twitter as a datastore. People send Twitter replies to you about your site. Then, Chirrup fetches all of the replies from Twitter, and sorts them by URL so you can have a comment feed for each page in your site. You can put the comments wherever you want them, and style them however you please.
51. TweetCube – Tweetcube allows you to share files on Twitter. Blast out your images, videos, music and more with just a couple of clicks. TweetCube is 100% free but the maximum file size you can upload is currently 10mb. You can upload as many files as you want. Old files will delete after 30 days.
52. Twitterfone – TwitterFone is free service that lets you update your Twitter feed using your voice from any mobile or cell phone. You call it, speak your tweet, and hang up. A short while later, your tweet will be posted on Twitter.
53. Hahlo – Hahlo is an iPhone-styled interface for the great Twitter service, and it is built upon their simple API. All you need to use Hahlo is a twitter account. Your login details are not stored by hahlo.com, they are saved in a cookie to allow access to things such as your direct messages, and enable you to update your status directly from hahlo.
54. Mytweetmap – Simply enter your Twitter name and password, and see the messages from those you follow pop up on a Google Map. You can also update your status right from this application.
55. Tweetscan – Tweet Scan is a real-time search engine for Twitter posts. Just enter your term plus a user name (optional), and the system will scan Twitter to show you the results.
56. TwitDir – TwitDir enables you to find statistics of the Top 100 followers, Top 100 followed, Top 100 favoriters and Top 100 updaters. It also works as a search engine for Twitter users, which mean you can find any user information by searching his name.
57. Twitly – Twitly allows Twitter users to separate the people they follow into groups. e.g “chatty”, “friends”, “co-workers”, “journalists” etc. This makes finding and reading Tweets from the people that matter most to you a lot easier.