The PSXSDK is a free and open source software development kit that enables anyone with C programming knowledge to make programs and games for Sony's PlayStation console. Everything was either written from scratch or based on already available open source resources. It is thus free from any proprietary code and fully legal to use. The SDK is mostly geared towards a *nix environment, but is fully usable with emulation environments such as MSYS and Cygwin.
Recave is a content management system (CMS), Web portal system, storytelling software, blog or news system, online community, or whatever you want to call it. It makes it easy to create an online community with features including Web based admin, surveys, top page, access stats page with counter, user customizable box, customizable themes, friendly administration GUI, topic manager, a complete articles and comments system with moderation system, referer tracking, page creation and manager, customizable HTML blocks, a banner ad system, search engine, and backend/headlines generation.
WordBash is a Wordpress clone written in Bash, the GNU Bourne-Again SHell. Everything is generated and output by Bash. No AWK. No SED. No TR. It is all Bash (with one exception). It is a CGI script with an attempt at an OO-like design. It currently supports posts (categories, tags), comments (with spam rejection), themes (true templates), and code highlighting as an administration addon. The current script size is 21 files of about 2500 lines and only 44 kilobytes.