Udacity.com: free, quality education for anyone, anywhere

Check it out: www.udacity.com.  Another worthy contender is coursera.org.

Udacity courses are hard: they're equivalent to what you'd get at the finest private universities, but they're designed to help you learn the material without hazing or boring you.

One of our friends recently took a course and earned this certificate:

Cute, huh? The "highest distinction" endorsement means he scored 100% on the final exam.  Congratulations, Pete!