The LAFF: Linear Algebra class just started again for the "fall semester" https://courses.edx.org/courses/UTAustinX/UT.5.02x/1T2015/co...

Maybe one of these days I'll complete it :)

I really like 3Blue1Brown for a wide range of math topics. He's just a great teacher.

https://www.youtube.com/playlist?list=PLZHQObOWTQDPD3MizzM2x...

Frankly, I find the UTAustin linear algebra class less than ideal or optimal, but it's free and lots of classmates, material, so...