If you like videos, but not Khan, give Gilbert Strang's videos at MIT a look. His teaching is fantastic, and he wrote several of the core texts. Or you can just work directly from his books if you prefer that approach.
There are several freely available LinAlg books on the 'net as well. Well, counting pirate books, there are lots of them. But even limiting it to the legally available ones, there's quite a bit of learning material out there. For example:
https://www.khanacademy.org/math/linear-algebra