I would approach this in two ways. First get good reading material. Kalmbach publishes a lot of reference books. I only see one listed on this site. You can probably find it at a hobby store too. Send them an e-mail and tell them what you're looking for. I'm sure they'll have a solution.
However <looks over shoulder for the FSM police> Verlinden produces some excellent modeling guides. I purchased one from them years ago and I constantly refer back to it. Great tips and techniques. They cover it all too from scratch building, to finishing, to dioramas. I highly recommend their stuff. Here is their web site. They seem to be linked up through Amazon. If you're not sure which one you should get, I would write them an e-mail for suggestions. I just saw one that I'm going to order today.
http://www.verlinden-productions.com/
Also consider getting a subscription to a magazine that focuses on what you're interested in. FSM covers all the bases, but there are also magainzes that focus on aircraft, ships, cars, etc.
The other way is by using this bulletin board. I post a lot on here, but I'm picking up tips all the time.
Hope that helps. Best of luck!
Dave