NaviServer, a high performance web server written in C and Tcl
Universal server
A distribution of Nginx with some advanced features
apache cookie SSO mechanism.
Apache 2.4.x security, block known bad IP
Open Source PKI solutions
WebDAV CGI brings your file service to the Web.
Monitor Apache using SNMP
Adds SCGI protocol support to IIS
Free-SA is report generating tool for web, proxy and mail log files
mod_gnutls apache module
GlowMuck is a multi-user text-based role-play platform, a MUD server.