Less Wrong is an online community whose site runs on a fork of Reddit. I added a number of features to their main site, as well as their wiki, and improved the integration between these two independent systems.
BIG Folio's previous customer management software was beginning to show its age, so I stepped in and rewrote it using a modern toolset, and added some features while I was at it.
Dustcourse is an online level viewer for the excellent game Dustforce. I made it to see how far I could push 2D graphics rendering in the browser environment.
Souse is a Windows app that clicks the mouse or performs other actions based on audible gestures (clicks, whistles, etc.) made by the user. The app is closer to a proof of concept than a consumer product, however the underlying technology is solid and it can be customized for different environments and workloads.