- History of the octothorpe, if you were curious where the # key on the phone came from.
- vnc2swf, for capturing VNC sessions as Flash movies.
- Registry Explorer you see your Windows registry as part of your file system.
He's also just started something called del.icio.us, which is like a group muxway. A URL API lets you add and retrieve links, for example, so you can use it as a remote repository for links to display on your own site.