Here's a good videotutorial by the Process Diary that'll explain many rigging concepts. If you're an absolute rigging beginner, I recommend you read up on a few tutorials first - some good links are included in the article.
Paul Caggegi wrote:
Hi folks, Paul from the Process Diary. This month, I I rig one of my characters and show you the process. While I borrow from tried-and-true methods which have worked in the past, I take you from initial armature setup through to custom bone building and final bone-heat weighting. All in about 15 minutes!