I came across the Rocks and Minerals blog the other day, but I have no idea who runs the site. There were also some other sites linked to it (listed below). They look like dictionaries or encyclopedias being developed. I might offer to help add defintions if it is a serious effort, but I don't know who owns the sites or if it is affiliated with an institution. Anyone else have any info about these blogs?
Linked to this blog were the following related sites:
Geologic Terms Index