STEM/Engineering youtube channels

[RyanCahoon]

You should check out some of the courses on http://www.udacity.com . They're nominally college courses, but my impression of them is that they're pretty accessible. Mostly math and computer science.

There are other sites around (coursera.org being my favorite) that also offer college-level courses online for free, but a lot of them require at least some previous knowledge, so YMMV. Coursera.org did just post one called "How Things Work" that's supposed to be a good introduction to physics from a highly pragmatic approach and could be interesting.

[Michael Hill]

I've posted this before. I really like the EEVBlog. http://www.youtube.com/eevblog

Thanks all! The sources don't need to be youtube. Any online educational system/website will work. I just want to learn more.

[Basel A]

This may be more formal than what you'd like, but you could try Coursera, which partners with topflight universities (UPenn, UMich, Princeton, Stanford, etc.) to offer a bunch college-level courses free online.