Analytical Sciences Digital Library
http://collection.asdlib.org/

Chromacademy HPLC and GC Troubleshooting
http://www.chromacademy.com/gc_troubleshooting.html
http://www.chromacademy.com/hplc_troubleshooting.html

Minnesota Section – American Chemical Society
http://mnacs.sites.acs.org/

Association for Environmental Studies and Sciences
http://www.aess.info/

Environmental Studies Case Studies
Enduring Legacies Native Cases
National Socio-Environmental Synthesis Center
National Center for Case Study Teaching in Science
Science Education Resource Center (at Carleton College)

Sustainability – Adaptation – Resilience
Greater Northfield Sustainability Collaborative
Sustainable Cities via Lets Go Solar
MN GreenStep Cities
MN Living Green