bmPress is a WordPress plugin adding social bookmarking capabilities to the WordPress publishing platform. Worth have a look!
From next week on themeshaper.com you will be able to learn how to create your own WordPress theme from scratch. This theme will not be a simple one but will contain all features contained in a so-called "Premium" WordPress theme.
Hybrid framework 0.6 is here: built for WordPress 2.8, with new features and lots of improvements compare to the old version.
If you are looking for a WordPress framework, download and try this one: you won't be disappointed!