This is a handy utility which monitors the status of Hudson or Jenkins (a Continuous Integration tool). It reads the RSS feeds, and sits in your system tray. Checkout http://hudsontracker.sourceforge.net/index.html for more info and screenshots.
Build monitor for Hudson build system. Dragging and dropping a URL onto the build twitcher app window will make buildtwitcher poll that URL for build success and failure messages. Passing builds colour the window green, failing ones colour it red.
URL-Checker is a Java-Application, which periodically connects to a specified URL and writes the results (ie "connection OK/failed") to a logfile. A nice tool for webmasters to monitor the availability of a website. There is a GUI and a non-GUI-edition