A great tutorial by Justin Tadlock. You will learn how to integrate plugins in a clean way with your theme, in order to load pages faster and in a better way.

Gravy is the codename of a new WordPress framework, released today by Darren Hoyt. For $15, you get a well-structured framework, with some special features that other frameworks do not have: this WordPress framework is designed and delivered to help you code your theme from the .psd file already. Even slicing is made easier.
Make sure you have a look at this new project, in my opinion, the $15 are worth it!

After ithemes a few weeks ago, it’s now the urn of Woothemes to go GPL with all their themes! This news was announced with the launch of the new Woothemes website, along with lots of changes and special offers!

Needing a little help with your WordPress development? Try these useful cheat sheets, they are always helpful for reference.