I have worked on a large number of diverse web sites and projects.  A few of my favorites are below.
 
Roush Fenway Racing
I created a lot of the backend code for this site which pulls XML data for races, drivers and race series.  It was a complex process, but the end product is really cool.
 
Facebook Parody
This was created as a parody of facebook for the Fall 2007 finals edition of the Minnesota Daily.  It has a lot of cool features, and it almost entirely recreates the interface for facebook including being able to open and close blocks and a fully functioning wall.
 
Mac OSX & Windows Vista
This was created for the Spring 2008 finals edition of the Minnesota Daily.  It uses a lot of javascript to accurately recreate Windows Vista and Mac OSX.  This includes mouseover effects for buttons, using ajax to grab content, working Mac OSX dock and a fully draggable windows.
 
Drag and Drop Form Builder
I created a drag and drop form builder using jQuery and jQuery.ui.  It's an interesting experiment and in the future I would like to experiment with building compelling user interfaces using jQuery and other technologies.
 
Working TCP Simulation
As part of my studies I created a working "TCP" implementation which was able to successfully transfer a file while its data was being intentionally corrupted and dropped.  It implements a number of features that are seen in TCP including sequence numbers, ACKing, and checksumming.