Count Zero's article on magstripe reading/writing reprinted in the sci.electronics FAQ.
A frequently asked questions file about network programming in C on UNIX and its variants.
MobileRead Wiki - FAQ Amazon KindleFrequently asked questions about the Amazon Kindle, implemented as a wiki. Pretty up to date.
A fansite dedicated to the game Wasteland by Interplay. It's considered a classic RPG/adventure by many, and is a lot of fun to play. Note that you won't find copies for download here, you're on your own for finding them. There are also two mailing lists, one for fans of the game and another for fanfic authors.
A movement and meta project for double entry accounting using plain text. Aims to be simple and as easy to do as possible. Links to many implementations of this data format. Exportable and importable.