Useful internet links:

1. SCEC/JPL Earthquake and GPS Education Module:

http://www.scec.org/education/

http://www.data.scec.org/Module/module.html

http://scign.jpl.nasa.gov/learn/gps.htm

2. EarthScope:

http://www.earthscope.org/

3. Plate Boundary Observatory (part of EarthScope):

http://www.earthscope.org/pbo/index.php

4. UNAVCO – the inter-university consortium for making tectonic geodesy measurements

http://www.unavco.org/

http://pboweb.unavco.org/

5. Rio Grande Rift GPS Experiment in New Mexico:

http://epswww.unm.edu/facstaff/mroy/rgr_nm/index.htm

6. Rio Grande Rift GPS Experiment in Colorado:

http://anquetil.colorado.edu/%7Earlowry/Rio_Grande_Rift.htm