Have you noticed the increase in online resources that are readily available and free to use? The offerings seem to be literally exploding. It is hard to keep track of all of the sites, but if you are looking for a handy little list of 10, The CEO Under Thirty site has done a good job of pulling a list together. The list starts with Khan Academy and iTunes U, but can you guess the other eight? Check out 10 Places to Learn for Free and let us know in the comments which are your favorites. Were there any surprises for you?