Courses on Physics

http://hyperphysics.phy-astr.gsu.edu/hbase/HFrame.html

http://www.physicsclassroom.com/

K-8: http://www.thephysicsfront.org/static/topic.cfm?course=1

Conceptual: http://www.thephysicsfront.org/static/topic.cfm?course=3

http://www.hippocampus.org/Physics;jsessionid=278824950B833949E194E99D22BC8DB1

http://itunes.apple.com/WebObjects/MZStore.woa/wa/viewiTunesUCollection?id=341599922#ls=1

http://itunes.apple.com/WebObjects/MZStore.woa/wa/viewiTunesUCollection?id=341599916#ls=1
Click on "more from this provider" for more physics courses.

self-directed exploration: http://www.compadre.org/informal/search/browse.cfm?browse=gsss

And textbooks:
http://www.motionmountain.net/
http://www.ngfl-cymru.org.uk/vtc/2008-09/physics/ph1/basic_physics/free_high_school_science_text.pdf

And labs: http://websites.kahoks.org/Richert_Gary/sciweb/applets.html