Apache

Apache Friends
XAMPP is an easy to install Apache distribution containing MySQL, PHP and Perl.
http://www.apachefriends.org/index-en.html

Apache Toolbox
provides a means to easily compile Apache with a variety of options and mods.
http://www.apachetoolbox.com

ApacheCon US 2001
Santa Clara, California is the latest place to meet up with developers of this popular web server and other projects.
http://www.apachecon.com/2001/US/

DeveloperSide.NET
A hardened WAMP distribution based on Apache, MySQL, PHP, Perl, Tomcat and OpenSSL.
http://www.devside.net/

htaccess Generator
Generates htpasswd lines for adding to Apache htaccess files.
http://www.xs4all.nl/~remcovz/htpasswd.html

.htSuccess
PHP/MySql application to generate .htaccess files interactively.
http://www.htsuccess.com/

Indexsoft Access Manager [Commercial]
Perl-based generator of .htpasswd, .htgroups and .htaccess files.
http://www.indexsoft.com/

Study and optimization of Web server
French study of improving Apache's speed using PHP caching.
http://www.idfr.net/etude_apache/

Webmasterworld - Apache Web Server Forum
Apache specific topics.
http://www.webmasterworld.com/forum92/