Berklee College of Music is making their Introduction to Music Production class available online through Coursera.org. I have taken both the Music Production and Songwriting classes, and both have lots of useful information, although I found that commenting on the forums was not as immediate as being in a physical class.
Everyone has a different learning style, and I have used a variety of sources and formats in my Audio learnings. Hopefully, this will of use to some of you.
“With the recent introduction of high-quality-low-cost software and hardware, the tools of music production are now available to the masses. Albums are made in bedrooms as well as studios. On the surface this is liberating. Anyone can make an album for the low cost of a couple pieces of gear and a software package. But, if you dig deeper, you will find that it is not so easy. Producing music requires knowledge, dedication, and creativity.”