Rocks for Kids http://rocksforkids.com/
Yahooligans http://www.yahooligans.com/
How Rocks Are Formed http://sln.fi.edu/fellows/payton/rocks/create/index.html
Children's Museum of Indianapolis http://www.childrensmuseum.org/geomysteries/mysteries.html
Rockhounds with Rocky http://www.fi.edu/fellows/fellow1/oct98/index2.html
Mineral Information Institute http://www.mii.org