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Start with Khan Academy, work from the beginning until the calculus/precalculus sections. (it won't take long for you to blaze through the really early math and get to the point where you're reviewing highschool stuff) Then you'll be at a point to do early calculus and linear algebra courses online.

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I would definitely second Khan academy. I did this over a year ago and it was well worth the time and effort. I also supplemented with Purple Math. What was great about doing it was that it really filled in gaps in my own knowledge for things I didn't pick up in high school. For example, I know trig well from writing a lot of video games, but for some reason I had never learned about 30-60-90 or 45-45-90 triangles.

Thanks. Khan looks good.

I recently went through the stats courses... it was a great refresher from college.

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