Gimp
Creating Animations in Gimp - from MacGimp.org
Making Fire with Gimp - from MacGimp.org
Tutorials - from Gimp.org

Grass
Tutorials
Grass Seeds Beginners Tutorial
NVIZ Tutorial

MySQL
Beginning MySQL Tutorial - from Developer Shed
Training

phpShop
phpShop Tutorial (Part 1) - from Developer Shed
phpShop Tutorial (Part 2) - from Developer Shed

The Developer Shed web site contains a large number of extremely well written tutorials.

IN DEVELOPMENT.

Please check back soon.