DJW's Metamorphic Petrology
Annotated links to material about metamorphic rocks, migmatites and granitoid rocks, and related areas of "hard-rock" geology.
http://www.earth.ox.ac.uk/~davewa/metpet.html

Idaho State University
Study complexly deformed sedimentary rocks, medium and high grade metamorphic rocks, plutons, and volcanic rocks in Idaho.
http://geology.isu.edu/FieldCamp/

Songs About Rocks
Songs About Rocks is a sequential, integrated teaching unit on rocks and minerals. It is a music based, creative approach that offers a unique learning experience. It contains 6 original, informative, fun, easy to sing songs.
http://www.bcminerals.ca/rocks/

Cape Cod Rocks
Pictorial museum, exhibiting gems, fossils, rocks, and mineral specimens.
http://www.capecodrocks.com/

Cooloola Rocks & Minerals
Australian, Worldwide, Minerals, Rocks, Fossils, Crystals, Metaphysical
http://www.coolrocks.com.au/

Ocean Drilling Program - JANUS Database
The Integrated Ocean Drilling Program (IODP) is an international organization that explores Earth's structure and history through scientific ocean drilling.
http://www-odp.tamu.edu/database/

Stanford RockPhysics Project
RockPhysics Laboratory: Acoustic Microscopy of Rocks, Physical Properties of rocks and sediments
http://pangea.stanford.edu/srb

Rocks For Kids
About Rocks and Minerals written for kids with Links to kid-friendly rock information on the Web.
http://www.rocksforkids.com/index.html

The Rock, Mineral, and Fossil Reference
Contains over 100 pictures of minerals, rocks and fossils, as well as information about classification, identification, the Science Olympiad Rocks and Minerals event and related topics.
http://dph1701.tripod.com/geology/

Chicago Rocks & Minerals Society (CRMS)
Information on faceting, gems, crystals, rocks, minerals, lapidary arts, fossils, and related club activities in the Midwest U.S.
http://chicagorocks.org/