In some of the states you can find growing classes for cannabis. You can gain a wealth of information there and also network to find someone knowledgable that you can call on the phone once in awhile.
This is a good site to ask questions on but you have to be sure to filter the answers a little. Usually the best tool for learning is to just try it and see how it works out. We've all made mistakes on growing and we learn from them. Stick to the basics until you've got a good grasp of what you're dealing with and how to recognize symptoms for upcoming problems.