CMS Agnostic
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jQuery: Making JavaScript Fun Again
Designer Eye for the Geek Guy/Gal

Drupal
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Theming Drupal: techniques, approaches, philosophies	
FormAPI Inside Out	

Is Drupal an Enterprise Solution?
AHAH! - Ajax + FormAPI = More Responsive UI	
The new Drupal menu system

Joomla!
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Authentication in Joomla! 1.5	
Joomla!	
Writing Joomla! Extensions	

How do manage multilingual content within a CM