Hi all,<p>Long time reader, first time submitter! I recently launched my first proper web app, tweetvaultHQ (<a href="http://tweetvaulthq.com/" rel="nofollow">http://tweetvaulthq.com/</a>), which is a hosted personal archiving service for Twitter. A while back I was in need of a more effective way of accessing my own historic content on Twitter, so I created a very simple app that would periodically grab my tweets and store them. A friend suggested this would make a useful hosted service, so that is what it became.<p>tweetvaultHQ archives your tweets and favourites from Twitter, presenting them in an easily searchable interface. It features export options to get your data out in various formats, and also provides a bunch of stats on your tweeting activity that may inform or amuse in equal measure.<p>For me, it addresses two major needs: 1) giving better access to the content I've placed on Twitter and 2) giving me better ownership of that data, in the event of something awful happening to Twitter or my being otherwise unable to access that content. I've built up quite a collection of tweets over the last few years, and additionally have quite a bit of value in my favourites collection. I wanted better control over that data.<p>This is the first app I've produced to provide a service to the public, so this has been a real learning experience. Any feedback would be hugely appreciated - I've received some valuable advice already, including suggestions that I should raise the price (currently £1/$1.60 per month)! Several people have mentioned competitors to this app (a few self-install apps exist, such as TweetNest, and I'm aware of ThinkUp which has similar functions), but I'm not too worried about being a market leader right now, I'd just like to make enough for lunch now and again, and learn what I can.<p>I've got plenty of features on the roadmap, but feel free to suggest any you desire. If you like the app, let me know. If you don't, I'd still like to know! Many thanks for reading.