Little Shop of Physics is a great resource on Physics. It's an outreach program from Colorado State University that won a Google RISE Award. The program teams is a group of science educators and science students based at Colorado State University that help students do science in creative ways.
The site has some great links, experiment and activity ideas and more, including some webinars.
It's great for any science teacher to get some great, creative ideas for teaching science.
Great Physics Resources for Students and Educators