Let me put it this way, just search through relevant topic and keep filtering the appropriate website(s). I feel many of us would like to understand a topic with basic and frequently asked questions What? Why? Where? How? Which? Who?
Matching to above criteria and thinking process, I found a new product in the market "relevant answers for your frequent questions" - SnappyFingers. It's a smart explorer that would fetch across the relevant answers for your questions. SnappyFingers made the process of finding answers pretty easier.