Check out Large Format Photography Forum. Their home page has a wealth of information about large format and it's free! It has really helped me out. Also check out "Using the View Camera" by Steve Simmons. Steve's book is available on Amazon and has also taught me a few things.
Membership is free at Large Format Photography Forum and after I believe 30 days you can access the for sale section.
I'm a member and I recognize a lot of the APUG members here also being members.