Yanf is a configurable news fetcher that fetches news from many news sites and outputs what it fetches in a configurable format. It supports Slashdot, Freshmeat, 32bitsonline, Segfault, Packetstorm, LinuxTelephony, LinuxToday, LinuxApps, BeBits, Geeknews, Linux2000, and Securityfocus. It also supports backends in the RSS/RDF format and the daily static cartoon from Userfriendly.
The PAM authentication module for Apache implements basic authentication on top of the Pluggable Authentication Module library. Thereby it supports standard Unix passwd, shadow, NIS, SMB auth, and radius authentication transparently and interchangeably, wherever the HTTP protocol allows it.
bashlib is a shell script that makes CGI programming in bash easier, or at least more tolerable. It contains a few functions that get called automatically to parse incoming form parameters, keywords, and cookies, and builtin functions to access this data. It is very well documented and can be extended very easily.
The Machine Inventory Database (MID) is a Perl-based CGI interface to manage the machines on and off your network, both from the IP assignment perspective and the asset-tracking perspective. On top of acting as a frontend to a handful of MySQL tables, it handles IP assignment and acts as a frontend to the configuration files for BIND, YP, and DHCPD to reduce the chance for typos in the configuration files which tend to bring down service.
DAPACT (Data Aware Processing And Control Tags) is a set of JSP tags for simplifying the display of dynamic content in JSP pages. It focuses on retrieving data to be displayed, iterating over that data, and in providing control tags for changing what is displayed. (Though the initial 0.2 release does not have the control tags yet.)