ioquake3 (or ioq3 for short) builds upon id Software's Quake 3 source code release. It cleans it up, fixes bugs, and adds features. Its goal is to be the Quake 3 distribution upon which people base their games and projects. Its design goals include optimizing the engine for playing Quake 3: Arena, Team Arena, and all popular mods. This distribution of the engine has been ported to many new platforms. While it doesn't have PunkBuster (and never will), it does provide more security for servers and clients by way of various bugfixes which aren't in id's client.
pdf2htmlEX renders PDF files in HTML. It aims to provide an accurate rendering while being optimized for Web display. It is designed for scientific papers with complicated formulas and figures, so a precise rendering is the first concern, but general PDF files are also supported.
Ad Server Beans are adserver software suitable for ad networks, advertising agencies, ad serving companies, and Web publishers who need their own ad management software. With its pluggable design and distributed architecture, it can easily be integrated with behavioral ad targeting, contextual targeting, or any other third-party or home-made module. Connect to emerging publishing channels such as bulk SMS advertising, mobile phone advertising, in-game advertising, text link advertising, social network advertising, or video ad serving platforms using an easy-to-use API. Harness the power of existing ad networks such as the DoubleClick DART ad network, Google ad network, Atlas ad serving network, Microsoft, ad network or Yahoo! ad network by aggregating their inventory and banner ad campaigns.