Gimp Intermediate Tutorials

Make a pattered image like a brick wall look like text is popping out of it.
Tip:
Instead of popping out, you can make the text look like it's going inside the wall by by making the shadow thicker on top than on bottom.

Create a piece of tan paper to be used for old war documents or pirate maps.

Create a Yin Yang logo using guides to properly place your circles.

Creating a logo with rubber stamp design.
http://www.gimpusers.com/tutorials/create-a-simple-grunge-stamp.html