Drupal

http://www.slideshare.net/jonlee554/setting-up-a-debugging-environment-for-drupal
http://sourceforge.net/projects/xampp/files/
http://www.aptana.org/studio/download

Zen theme has a handy function to take any string and make it safe for an HTML/CSS id:

zen_id_safe($string)

drupal remove quotation marks

http://api.drupal.org/api/function/drupal_uninstall_modules/7

http://api.drupal.org/api/function/user_modules_uninstalled/7

Theming a form, like theming almost anything in Drupal 6, requires registering the theme function with hook_theme in a module or a theme. The FormAPI docs and the Drupal 5.x to Drupal 6.x form upgrade guide (Drupal 5.x to 6.x FormAPI changes appear to remain a little deficient in explaining this.

See for instance How to theme a form in Drupal 6.x?

Yes! And not just a single views folder, but directories under that for view name and even, beneath that, display name. Dividing by view name is I think as far as we'll want to go.

See:
Organizing your Views templates
http://drupal.org/node/430980

Initial Drupal community experiences and getting past the "I suck" threshold

Includes an excellent drawing representing her first five minutes in the Drupal community, which is almost everyone's first experience on IRC:

Diaries of a Core Maintainer #6: A tale of two developers

A groups.drupal.org wiki page that needs a lot of love:
How to make it possible to contribute to the Drupal project with small tasks in a few minutes?

http://api.drupal.org/api/function/drupal_add_css/6

Adding styles through the API: How to use the drupal_add_css function to add a CSS file
http://drupal.org/node/225868

Similar for JavaScript:

Using the magic of menu block (dev) and menu attributes.

theming menus
drupal menu theming

Another great reason to use Menu Block - the menu block alter function.