We tend to try to keep the information here organized, so a Wordpress tutorial would go in the Wordpress forum. If the tutorial is good, it may become a sticky.
If you join the NetBuilders Guide group, you can write guides for that project.
We will soon upgrade to vB4.x, which add a CMS module. At that point, we will migrate the NetBuilders Guide to the vBulletin CMS. Full tutorials will become part of the new articles section.