Hi,
I teach A-level physics in the UK. I am writting a physics website called Splung.com Physics. I The site has information on Mechanics, Optics, Thermodynamics, Nuclear Physics, Electricity and Magnetism and Cosmology.I am adding new content to the site as and when I can. The site also uses Flash animation to make some of content interactive. Find it at,
http://www.splung.com/

I hope it is of some use.