I built a generic, configurable portal application awhile back which I have added to my portfolio site. I even added a background image of myself acting like a nut which has a filter effect applied to it based on the position of the mouse cursor.
The Flex 2 Portal is a simple application that is intended to serve as a central location for launching multiple applications. It works great with Firefox as each application will load in a new tab in the same browser, allowing for all of the applications to run without appearing to be disjointed. You can also just simply use it as a portal for launching other websites.
You can view the Flex 2 portal application by clicking the image below. You can also right click and select ‘view source’ from the context menu to view the source code.