This is an aglomeration of stuff relevent to people who are as nerdy as me. Rather than spread these out as I find them, I've put together three things that make my inner (lets face it, not so inner) nerd smile.
For the physics nerds: http://input-image.info/Physics-Troll.html
For the people who love awesome gadgets: http://sensebridge.net/projects/northpaw/
If you use the command line frequently in a *nix type system: http://onethingwell.org/post/1611027215/viewglob