Hello, http://www.nofailtime.com/appmonitor is a web application developed with wicket framework. It basically checks the web site downtime and notifies the users about the failure.
It uses wicket, yahoo library(YUI), Spring and Cayenne as ORM. I used modal windows heavily to implement single page interface. YUI used for feedback panels and menu. I would be happy if you try the site and give feedback. You can login the site with account; username = demo password = demo Thanks,