Books and Documentation
Enabling Web Services with mod_perl, mod_perl Guide, Perl for the Web, The mod_perl Developer's Cookbook, Writing Apache Modules with Perl and C
Development Tools
Apache::ASP, Axkit, Embperl, ENodes, HTML Template, Mason, OpenInteract, Template Toolkit
Develooper: Real World Performance Tuning for mod_
Slideshow of a talk on several techniques of speeding up mod_perl.
Math Forum Discussions: mod_perl mailing list arch
A mailing-list archive dedicated to modperl. Contains posts dating from 1996 to the present day.
mod_perl - mailing list archive
Searchable archive for the Apache mod_perl mailing list
The Apache/Perl Module List
List of all the Apache::* Modules that are used with mod_perl