Widgets enter the third dimension: WolfenQT, Some people over at Qt Labs decided to render Qt widgets in a 3D environment.
Autumn of Agile is a series of screencasts on agile development methods.
KernelCheck is an application that will help you build the latest Linux kernel release for whatever distribution you are running.
Electric Guitar Played Through a Tesla Coil for Added Metal, a Japanese guy has hooked up his electric guitar to a tesla coil. (requires Flash)
History of the Stainless Steel Car, once upon a time some crazy people got together and decided to build a couple of cars out of stainless steel, amazing.
fonejackerhacker has built an iPhone dock out of an old rotary phone.
How Windows Users are Changing Linux and What We Should Do About It is an excellent article on how the sudden influx of windows users are affecting the Linux community.
IEEE-754 Resources is the perfect place if you want to know more about how floating point values are handled in most modern computer systems.