DBI - The Perl Database Interface
Official site includes documentation, mailing list information, and demonstrations.

Michael Peppler's Home Page
Sybperl (the Sybase OpenClient extensions to Perl) and DBD::Sybase information

dbi-users@perl.org
Archive of the mailing list.

O'Reilly: Programming the Perl DBI
Information about the book by Alligator Descartes and Tim Bunce. Includes the full text of the "Programming with the DBI" chapter.

DBI Examples
Tips and discussion on basic DBI usage and optimizing DBI programs.

Win32::ODBC for Perl
Newsgroup home, FAQ, Documentation.

Introduction to MySQL (using Perl DBI)
4 page article starts with basics of MySQL and finishes up with actual examples of DBI in a MySQL context.

CPAN: Database Interfaces
Listing of modules and their corresponding documentation.

Perl.com: DBIx::Recordset vs. DBI
Terrance Brannon argues that DBI should not be the interface for most Perl applications requiring database functionality.

CGI Database Applications with Perl
Tutorial covering the strategies and technologies behind writing a database-driven CGI application.

Just Enough DBI to be Dangerous
Slides and sample code from a talk given by Bradford Powell at a Raleigh Perl Mongers meeting.

MySQL and Perl for the Web
Official site for the book by Paul DuBois. Includes table of contents, errata, downloads, and a sample chapter in PDF format.

The Fine Art of Database Programming
An outline of database programming, with particular emphasis on Perl.

Dabbling in Live Databases: Microsoft Access
This tutorial covers the issue of connecting a Microsoft Access database to your website using Perl.

Enabling ODBC support in PHP
A step by step guide to adding ODBC access to Perl applications using unixODBC.