Earth Sciences
Recommended Books
Elemental Geosystems by Robert W. Christopherson
Web Text
Skeptical Science Skepticism of global warming skepticism
U.S. Geological Survey US Government funded Science organization, see About page for more information
Wave Motions in the Oceans Notes on this topic in geophysics
Geochemistry textbook Drafts of an unpublished book
Open Courseware
Tools / Reference / Exercises
Mineralogy database Most extensive online reference for minerals; includes photos, localities, and diagrams
Wolfram Alpha/ Earth Sciences A huge knowledge database for earth science which contains information about various topics
Bad Meteorology website about what actually causes meteorological events
EarthRef includes element concentrations of various reservoirs in different earth systems (in GERM section), and paleomagnetic data.
The Paleobiology Database collection-based occurrence and taxonomic data for marine and terrestrial animals and plants of any geological age
PhET Earth Science java apps hosted by University of Colorado, topics include glaciers and the greenhouse effect