An article on testing strategy for non-functional requirements that stimulated a fantastic discussion about functional vs. non-functional requirements. Great points are made both to eliminate and to highlight the distinctions.
The strategy for developing a test plan is good, and worth reading alone, but this article is fun in that it went in a completely different direction with a very well informed debate.
Article compares different approaches to testing the workflow of an application - specifically a web application. Detailed analysis of the maintenance & skill level tradeoffs for each approach. Also touches on Selenium and Watir approaches.
Deep analysis of the tasks that must happen in an iteration - development, analysis, testing, etc. Focus on the problems with staggering them too much, and suggestions on how to properly organize the team around those tasks.