http://www.seg.org
http://www.aapg.org
http://www.agu.org
http://www.geosociety.org
http://www.papgrocks.org
http://pittsburghgeologicalsociety.org
http://spepgh.weebly.com/index.html
http://www.geosc.psu.edu
http://www.geology.pitt.edu
http://www.geo.wvu.edu
http://geology.com/colleges.htm
