Question of the day (QOD) allows you to create your own “Question of the day” service on Twitter. It is easy to use. Just enter the question, multiple choice answers and post it to Twitter!

Post from Twitdom - Twitter Applications Database - QOD

TweeterStar enables you to increase your follower base by “buying” followers. TweetterStar offers you the opportunity to buy targeted Twitter followers delivered straight to your Twitter account. If you represent a company, having 10s of 1000s of followers will certainly help your marketing effort. With such a following, it will only take one single click to promote any product to all your Twitter fans in a breeze. And you could do just the same again the next day. Four types of campaign are already offered, and the number of targeted followers that can be accrued amount to: 1,000, 2,000, 5,000 and 10,000 individuals. Payments are handled via PayPal, and additional services include help in setting up your Twitter page so as to accommodate the new influx of followers.

Post from Twitdom - Twitter Applications Database - TweeterStar

Tweet Defense is a pick up and play Tower Defense mobile game featuring several unique defense towers and waves of zombies with some big surprises up their tattered sleeves. Ten game maps on the iPhone deliver limitless fun and endless opportunities to test your skill and try new tactics to win.

In addition to being a fun tower defense game, Tweet Defense uses your Twitter activities as part of your game stats.  The more you tweet, the better your chances of becoming the top defender on the leader board. By simply logging into your Twitter page your statistics will boost your tower’s capabilities giving you a chance to become the Tweet Defense champion of the world.

Tweet Defense is available in the iPhone App Store for $0.99.

Post from Twitdom - Twitter Applications Database - Tweet Defense

How Interesting Are You analyzes tweets to calculate scores for tweeters on a wide variety of topics. This includes areas like “How Nerdy Are You”, “Do you have what it takes to become a movie critic”, “Are you a social media guru”, etc.

You login via OAuth, and let the app do the rest! There is a Leaderboard for each category.

Post from Twitdom - Twitter Applications Database - How Interesting Are You?

TweetShare is a Twitter app that allows anyone to publish any type of content to the web and automatically start Twitter conversation threads around their content. Besides having a web-enabled Internet, it is available as an iPhone app. Tweetshare also provides measurement and analytics tools, including polling functionality and the ability for users to become a fan of a brand’s Tweetshare Fan Page. And similar to YouTube channels and Facebook pages, Tweetshare Fan Pages can be branded and customized.

Via TechCrunch

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Retweet Me helps you get your voice heard. Use Retweet Me to post a status on Twitter you want retweeted, and then retweet other users’ statuses on Retweet Me. Your tweets will be retweeted.

Basically, retweet for others and you’ll be retweeted.

Post from Twitdom - Twitter Applications Database - Retweet Me

Packrati.us is a simple service that follows your Twitter feed and then extracts links from tweets and adds them to your delicious.com bookmarks. Optionally, it will bookmark URLs in @replies to you. Packrati.us will even add a delicious tag identifying the sender if you like.

Post from Twitdom - Twitter Applications Database - Packrati.us

HomePuzz is an all-in-one status update application that integrates Twitter, Facebook, and Google Buzz, enabling you to update the status on all three social networks at one go. As described on KillerStartups,

Each and every action that you associate with these services can be carried out from HomePuzz – updating statuses, sending out links, uploading videos… it is truly like a dashboard that will let you dispense with visiting one site after the other in order just to be active.

Via BuzzAware

Post from Twitdom - Twitter Applications Database - HomePuzz

Don’t Tweet That displays a list of humorous tweets that you would typically think twice about before tweeting! It has a selection of its “best ever” tweets as well.

Post from Twitdom - Twitter Applications Database - Don’t Tweet That

TwitCasting Live is a a free iPhone application that is essentially a live streaming app and Twitter client rolled into one. TwitCasting Live splits the iPhone screen in half, allowing you to view your Twitter timeline, update your status, access the web etc. on the bottom half, while recording (broadcasting) video on the top.

Images via MobileCrunch

Post from Twitdom - Twitter Applications Database - TwitCasting