Exemplified Vacation Photo Gallery
Turn your rocky landscapes into a dramatic vacation gallery with GIMP.
Cameo Photogallery
Turn your digital color photographs of people into a contrasty grayscale which is friendly to flesh tones with GIMP.
Photo Essay Gallery
Make an essay gallery with GIMP.
Emulate Photoshop Desaturate
With the exception that I am just using GIMP to emulate GIMP....
Emulate Video Capture
Using either the GIMP Python Layer Effects script or the instructions for the noised layer effect, it is really easy to make your crisp photograph look like a low-grade video capture frame.
php web pages
Not GIMP related, but still an interesting apache hack.