I've been posting about Tracking Twitter a few times lately. Here's part 1 and part 2. Part 3 explains how to track Short URLs from Twitter.
Tracking short URL's could be relatively easy. You could use one of the trackable short URL providers. But what to do with the data when you don't have it in your web analytics solution?
Webupd8 has a great way of using a bookmarklet with an api. He was able to track clicks from short URLs within Google Analytics and it doesn't matter if the click comes from a hosted email app, email client and so on.
If you want to know how to exactly set it up, check out his blogpost. Well done!