Geek Software of the Week: ServerWatcher
ServerWatcher is a Java application that allows you to monitor your web site (or any web site) and be notified if the site is not accessible. It is great if you have a site that absolutely MUST be up at all times and you MUST know if it is down. You can set it to send you email (or AIM or Yahoo! Messenger) if it goes down. The nice thing is it is totally free. Simply download it, unzip it into a directory, and run the .jar file. (Obviously, you must have Sun Java installed on your system. Free and Open Source! Enjoy!