Keep your Apple 3rd Party Apps up to date
Here is a Mac widget which will allow you to keep your 3rd party apps up to date. It supports Apple’s software directory, MacUpdate and Version Tracker. It will present you with a tidy link list of all the updates found, enabling you to read release-notes and download the the updates quickly and painlessly.
Amongst the key features are automatic update checks once per day or week, Growl notifications, powerful configuration possibilities, support for Apple’s download pages, MacUpdate and VersionTracker and an extensive documentation built right into the widget (but you can also read the documentation in your browser).