Has anyone used this website? It looks great- it has a million courses online with online videos and lectures, tests, etc. It has a wide variety of science, math, humanities, etc. topics. It's only $50-100 a month.

We are using this almost exclusively for our 10yo's schooling. Each subject has 8-10 minute animated video clips with a quiz at the end of each clip to confirm the student's comprehension.
If you have a child who learns well from videos this could be a good option.