This directory contains thousands of listings, yet it is far from complete.
Know of a group that should be listed?
There are no formal criteria for inclusion in the directory, but here are some informal guidelines:
Open to individual (human) membership
Dedicated domain name
Sites on free hosts
Sites in subdirectories
Better off Elsewhere:
Hunting and fishing groups
Basically, if an organization seems to fit in with the spirit of the directory, I include it.
Hope this helps...