Did you know that several universities such as Yale have entire courses and lectures available online? For free?!?
Here is a comprehensive list of the Top10 Universities with Free Online Courses:
MUSIC 112: Listening to Music (Fall, 2008)
Listening to Music with Professor Craig Wright
Ecology & Evolutionary Biology 122:
Principles of Evolution, Ecology and Behavior (Spring, 2009)
with Professor Stephen C. Stearns
HISTORY 234 – Epidemics and Western Society Since 1600
Professor Frank Snowden Spring, 2010
Harvard also has some classes:
Berkley has some lectures and classes as well.
A lecture by David Lynch: Consciousness, Creativity and the Brain, at Berkley