WordPress Tutorials (Advanced)

I stumbled across a cool tutorial website tonight for intermediate to advanced wordpress users.  The website has some pretty useful information about using third party tools like phpMyAdmin and cPanel to interact w/ your wordpress installations.  Granted most of these tutorials are way over the heads of most of my wordpress clients but I feel like some of these tutorials could be very useful to some advanced wordpress users and hosting providers as well as developers.

Free WordPress Tutorials