I don't know why, but ever since I was little, I just LOVED learning/exploring new things, gaining knowledge. (God, I'm such a geek.)
And I just discovered today that Apple has a "virtual university" with access to free course material, lectures and audio books...who knew? Evidently, not me; at least until now.
If you have any kind of Apple hardware--iPad, iPhone, iPod Touch, laptop--you can access thousands of free resources through Apple's iTunes U. How awesome is that! You can even go to website's of top universities such as Cornell, Stanford, and Yale.