Flightsim.com now has a Wiki for FAQs and some other things. This will be an ongoing project, so more will be added as time goes on, more questions are asked, etc.
You can access the Wiki at: FS Wiki Main Page
You don't even need to log in to read it.
P.S. There is now a link to the Wiki in the blue bar at the top of these pages, along side FAQ, USER CP, login/logout, etc.