2.6 by the numbers
Matt Mullenweg shows numbers on the uptake of WordPress 2.6.
Dealing with Code Un-Coverable by Tests
Patrick Smacchia shows how NDepend can help in tracking test coverage.
Interfaces vs. Concrete Classes
Shows benefits of using interfaces where possible.
Using objects or repository interface in constructor
A brief and tidy example of dependency injection.
What Is Really Considered Documentation?
Takes a look at what project documentation is and where it comes from.