For thousands of videos you can trust on almost every math topic we teach at Shoreline, go to mathispower4u.
Free online graphing calculators
MIT Single Variable Calculus -- includes lots of free videos of lectures and solved problems
(To find other MIT open courses, go to http://ocw.mit.edu/courses/find-by-topic/ and search for your favorite.)
TeachWashington.org (information on every teacher education program in the state)
Just for Fun
History of Math, including Mathematician of the Day
email me if you find that any of the links are not working.