Linux Advanced Radio Terminal (LART) is a small low power computing element used in the MMC project.
http://www-ict.its.tudelft.nl/~erik/open-source/LART/
gtk+ based diagram creation program released under the GPL license
http://www.lysator.liu.se/~alla/dia/
The goal of this project is to build a simple Scanning Tunneling Microscope that can resolve atoms, with a cost of materials less than $100.
http://www.geocities.com/spm_stm/Project.html
A student team at the University of Stuttgart has developed a set of chips for use in Cryptography, including RSA, DES, and control functions.
http://www.ra.informatik.uni-stuttgart.de/~stankats/
The First-In First-Out memory buffer design is targeted to Xilinx FPGA XC400 family.
http://www.geocities.com/SiliconValley/Pines/6639/ip/fifo.html
Freeware (GNU license) by Dr. David Kirkby (G8WRB). ATLC stands for Arbitrary Transmission Line Calculator. Consists of several Unix programs that calculate transmission line characteristics for various geometries (coaxial cable, microstrip, etc.) includi
http://atlc.sourceforge.net/
Aims at design and eventually manufacture of a 64-bit CPU.
http://f-cpu.tux.org/
A RTL description and test patterns of Kyoto University Education CHIP-2 (KUE-CHIP2) are open to public.
http://www.metsa.astem.or.jp/udli/tutorial.html