USGS Earthquakes for Kids http://earthquake.usgs.gov/4kids/
IRIS (Incorporated Research Institutes for Seismology) http://www.iris.edu/
Seismological Society of America http://www.seismosoc.org/education/education.html
SCEC (Southern California Earthquake Center) http://www.scec.org/education/
AGU (American Geophysical Union) http://www.agu.org/sci_soc/educ.html
MCEER (Multi-Disciplinary Center for Earthquake Engineering Research) http://mceer.buffalo.edu/education/default.asp
AGI (American Geological Institute) http://www.agiweb.org/geoeducation.html
EarthScope E&O http://dax.geo.arizona.edu/earthscope/eo/
California Geological Survey http://www.consrv.ca.gov/cgs/information/educational_resources/index.htm
EQNet http://www.eqnet.org/
DLESE http://www.dlese.org/
NAGT (National Association of Geoscience Teachers) http://www.nagt.org/
NESTA (National Earth Science Teachers Association) http://www.nestanet.org/