Augmenting Hardware Design with Functional Languages. A series of functional languages for hardware design. Confluence and HDLcaml (sp?) were based on OCaml, the newest called "Atom" is based on Haskell.

A toolkit to work on PDF documents. From the page: "If PDF is electronic paper, then pdftk is an electronic staple-remover, hole-punch, binder, secret-decoder-ring, and X-Ray-glasses."

Lots of information about photography (analogue and digital), including discussion about eye sensitivity.

A free (GPL) program to compute impedances and coupling factors of transmission lines with fairly complex geometries.

A neat CGI interface to calculate the geomagnetic field. Off-line versions of the program are available too.

From the page: Still not sure what BitScope is? BitScope is a built and tested (and previously build it yourself DIY), open design, digital storage oscilloscope and logic analyzer (also, digital sampling oscilloscope, mixed signal oscilloscope).

Got this from Fossy, a multi-format video player for Linux and other operating systems.

Muse allows to write documents using a wiki-like markup and to publish to a number of formats, including HTML, texinfo and LaTeX.

Has Sleepwatcher, a program to take actions at sleep/wakeup events on Mac OS X and other

A cool page for tracking satellites on a map from Google.