Prey is open source software that will try to phone home if your computer (or smart phone) gets stolen.
Qt has put together a set of lectures and exercises for teachers. I hope they do one on Qt Designer for the UI folks.
Tiny Core Linux is a customizable micro distro. Could be quite useful for installations or embedded-ish stuff.
Google Sharing is a Firefox plugin that uses encrypted, proxied connections to make search queries a bit more anonymous. It's not serious cloak and dagger level security but it does give one a bit more privacy and refuge from marketing drones. It's Open Source and you can run your own proxy if you want.
While many people might think of Fraktur typefaces as "Nazi Fonts", Hitler actually tried to have them banned. Wikipedia covers the whole controversy, which started back in the 1800s.