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Acquia Drupal Modules | Acquia
Acquia Drupal is a selection of the best software available in the Drupal community to build and operate great Drupal social publishing websites. Acquia Drupal consists of Drupal Core, community contributed modules, and Acquia Network modules. Drupal 6.x

A newbie's guide to contributed Drupal modules | Ceardach
A list of contributed modules for the Drupal content management system. 25 modules are explained in depth so that a Drupal-newbie may better know where to start when building their first Drupal-powered website.

Site Recipes
These include a variety of different outlines for creating different kinds of Drupal sites.

Drupal Caching, Speed and Performance
A collection of resources for how to improve the speed and performance of your site.

How To: Drupal Theme Makeover
A tutorial on customizing existing Drupal themes.

Drupal Sub Domain Configuration
The basics of setting up sub domains with Drupal.

a Mobile Web Blog
A collection of resources for building mobile sites with Drupal.

Drupal Developer’s Toolbox
A collection of resources for Drupal developers.

Drupal Cheat Sheet
A very thorough overview of how Drupal works, terms you’ll need to know, best practices, and more.

My Drupal CVS Cheat Sheet
A guide to dealing with specific Drupal CVS tasks

Drupal Debugging Tips
Some handy tips for dealing with errors thrown by Drupal forms.

CVS Reference Guide for Module Maintainers
A must-have resource if you’re responsible for maintaining a Drupal module.