Custom Taxonomies

• 2009 Justin Tadlock: Custom taxonomies in WordPress 2.8
• 2009 Justin Tadlock: Using custom taxonomies to create a movie database
• 2010 Monday By Noon: Custom Post Types, Custom Taxonomies, and Permalinks in WordPress 3.0
• 2010 Monday By Noon: WordPress Archive Pages Based on Custom Taxonomy
• 2011 WPCandy: How to organize your content with WordPress custom taxonomies

Plugins

• Taxonomy List Shortcode