Jake tossed over this link to George Nava’s XUL Apps. It’s a plethora of simple online applications, in case, like in Windows, you do not have a Mail or Calendar application. Or if you just want to play some Video Poker.

These applications use a technology called XUL which translates to XML User Interface Language. XUL is specific to Mozilla browsers. Basically, XUL is a coding library that allows you to “create rich, sophisticated cross-platform web applications easily.”

Also, George Nava seems to be a pretty busy and intelligent person. The rest of his site is filled with neat things you should check out.