Online lecture courses

[Yasiru]

I've been looking at open courseware options on the web for more advanced subject matter (introductory calculus and the sort are now offered aplenty) and came across this:
http://www.youtube.com/user/UNSWelear...

It's a primer on algebraic topology that takes an interesting visual approach.

I hope you'll share similar material you might come across here.

[Chris]

Harvard Extensional has a pretty good Abstract Algebra course taught by Dean Gross based on M. Martin's book. (video/audio)

[Yasiru]

There's some variety also on Coursera now.
Udacity and MITx have some maths-heavy 'applied' units available.

[Tattwamasi]

you can have a look at nptel.iitm.ac.in

[Matt]

MIT's Open Courseware is pretty awesome, I got a lot of help from the Linear Algebra lectures while I was at uni.

http://ocw.mit.edu/courses/#mathematics