Diving into Drupal, or, List 'o' Modules

This post of links should help me dive deeply into drupal.

First, getting started with content in Drupal: Node Types.
Also see the docs on Drupal's Taxonomy system.
Also see the great IBM intro to developing a collaborative web site.

Most of the non-essential core modules listed here will be useful (comment, forum, node, profile, search, statistics, taxonomy, tracker, user).

Here's a list of interesting contributed modules I'd like to learn more about:

• Simplenews: Simplenews is a simple newsletter module which allows both anonymous as well as registered users to subscribe to different newsletters.
• Massmailer: manage mailing lists (based on PHPList
• Listhandler: synchronize mailing lists and forums
  
• Organic Groups: Enable users to create collaborative groups (incompat. w/ taxonomy?)
• Organic Groups List Manager: integrated mailing list/forum for OGs.
  
• Node Vote: a node voting system
  
• Interwiki: wiki syntax for linking
• URL Filter: automatically turn URL text into hyperlinks
  
• User Points: users gain points as they do certain actions
• Tagadelic: weighted tags in a cloud
  
• Privatemsg: an internal messaging system
• Pathauto: automatic path aliases for nodes and categories
  
• Biblio: manage lists of scholarly publications (including .pdf upload)
• SPAM: tools to stop unwelcome posts
  
• Services: standardized API for drupal
• Google Analytics: free advanced web stats