American Geosciences Institute
The Geological Society of America
Educational and Public Outreach Resources of GSA
Educator awards and grants, teaching resources, online journals
National Association of Geoscience Teachers
Teaching resources, awards
Journal of Geoscience Education
Teaching, learning, and research about geoscience.
Internet Resources for Teaching Science
Resources for teaching geology
Society for College Science Teachers
Advance HE: Science, Technology, Engineering and Mathematics (STEM)
Provides teaching resources and other information on teaching, learning, and some SoTL on specific subjects.