If you have always wanted to become a master of photography, know that a chance has just come. The ALISON site, one of the largest repositories of online courses, has just made available the Harvard University photography courses - nothing less than the most prestigious teaching institute of today - for free in its service.
The course, which is available under Creative Commons license (ie: completely free), consists of a total of 12 modules. These range from basic learning to editing software to create the perfect composition and lighting for your photo. There is also a 13th module with a summary of all that has been learned, to help those who have gone through the whole process.
Before you get too excited about the novelty, however, it's worth pointing out a little "catch" on all this: the course made available is dated 2009. This is not to say that the teaching bases of the course are outdated, of course, but you You must already imagine that the story is a bit different with the part of the applications used in class.
Even so, considering that the course is free and still comes from a university quite renowned, it is worth taking a look at it.