Social Science teachers at all levels should find
http://geography.about.com/ full of useful information. 
Matt Rosenberg provides links to most every facet of geography.
Human-cultural, physical, maps, clip art, atlases are all covered. 
One of the cleverest items is a weekly quiz on geographic trivia 
that can be used for bonus questions on tests.

If you have a favorite bookmark that you would like to share,
please send it to hillsmh@gvltec.edu