WatchMouse Site Monitor is a new widget from WatchMouse that monitors a web site for availability problems. Enter the URL for the site you want to monitor, and the widget checks the URL every five minutes, alerting you by beeping if the site is not available. The widget also launches your web browser and takes you to the WatchMouse web site where you can sign up for paid services that give you extra monitoring and diagnostic tools. WatchMouse Site Monitor is free, and is available for download from the Apple and DashboardWIDGETS web sites.