Most of these images will be made to be used as wallpapers, because that's the best way I know to enjoy them. With no headache inducing color schemes, they should be not only tolerable, but enjoyable, for hours. These wallpapers are free to use, but not to distribute. If you want to share them, give out the url to this page. Thank you.
Most of my images are created with the excellent freeware program Fractal Explorer.
Flame fractals made with the free software Apophysis. The linked page has links to a few versions of the program, plus lots of tutorials and stuff.
I've discovered that I don't like post-processed or layered fractal images as much as those that are just plain fractals. Very few of my images have had any post processing beyond sharpening, resizing, and conversion to .jpg format. If anything else was done to them, the software used is noted on the image page.
Find some incredible fractal images by Jock Cooper at Fractal Recursions. Most available as wallpaper.