Science Joy Wagon  (tutorial) This site is great and used to be free.  There is now a fee to view each tutorial.  The cost is $5 per year.     www.sciencejoywagon.com                           

Virtual Labs  (online labs & tutorials)     http://www.hazelwood.k12.mo.us/~grichert/sciweb/applets.html

Dr. Riley's Site (for AP Physics -Ppt. & Links)www.drriley.tk

The Physics Classroom  (Conceptual physics site) http://www.physicsclassroom.com/

More Virtual Labs  (interactive labs)           www.explorescience.com

Fear of Physics?  (Fun, easy to understand)               http://www.fearofphysics.com/

Hyperphysics (Good overview & outline)http://hyperphysics.phy-astr.gsu.edu/hbase/hframe.html