The Q&A come from different people and those people use different references. Usually each question has the source listed below it once you've tried to answer the question.

But if you want to start without those references, start with Books Online, then start googling different terms that you hear on the forums. You'll come up with all sorts of threads discussing different things.

And if you still can't find the answers you're seeking, post to SCC.com. @=)