New (started in 2012 TBC) open source (GPL) editor supporting Clojure, ClojureScript, Javascript, Python, HTML, and CSS. More languages can be added via plugins in the future. LightTable is written in ClojureScript and runs on Windows, OS X and Linux.

Blog about Programming, Theory, and Math, written by John Meacham.

Combined Table of Contents
The following table lists every page ever printed in a research edition [of the Unix manual]. In general the presence of a page in an edition is signaled by +; a number instead of + indicates that the page appeared in a different chapter of that edition.

Foundation is a preservation system for users’ personal, digital artifacts. Foundation preserves all of a user’s data and its dependencies—fonts, programs, plugins, kernel, and configuration state—by archiving nightly snapshots of the user’s entire hard disk. Users can browse through these images to view old data or recover accidentally deleted files. To access data that a user’s current environment can no longer interpret, Foundation boots the disk image in which that data resides under an emulator, allowing the user to view and modify the data with the same programs with which the user originally accessed it.

Background about the shutdown of the TrueCrypt project

Airspy is a very tiny (5×3 cm) software defined radio receiver capable of sampling 10MHz of spectrum anywhere between 24MHz and 1.7GHz.
USB interface, works with Linux.

Program to query and set the status of the keyboard LEDs on Mac computers.

Jeff Miller Web Pages
Words and Symbols, for example
   Images of Mathematicians on Postage Stamps
   Earliest Known Uses of Some of the Words of Mathematics
   Earliest Uses of Various Mathematical Symbols
   Ambiguously Defined Mathematical Terms at the High School Level
   A Collection of Word Oddities and Trivia
   History of American Broadcasting

One of many interesting computer history stories. This one contains the following quote from Alan Perlis:
 Fools ignore complexity. Pragmatists suffer it. Some can avoid it. Geniuses remove it.

USB oscilloscope, logic analyser, waveform & pattern generator.