I would suggest picking up a copy of Audio Postproduction for Film and Video by Jay Rose; at the very least it's good to refer to. It helped me out many times in the past and it gives you enough information to fully grasp what you are reading. This book changed the way I approached audio projects while I was in school, and it still is within close reach on my desk.
Vimeo and YouTube are great sources to find "making-of" and "behind the scenes" clips. However Rose's book will give you a good foundation on how to mix for a variety of media and also provide some real insight into overall dynamic(s) processing. Dave is right about the Sound Effects Bible. This book is useful to almost anyone, and is particularly helpful if you want to establish a set workflow in your recordings. There's always something new to learn.
(:
http://www.amazon.com/Audio-Postproduction-Second-After-Shoot/dp/0240809718