You've got questions? We've got answers! For a while, this was Radio Shack's slogan.
FAQs = Frequently Asked Questions (and answers) files.
Read these after you've RTFM (Read The Manual).
Or, just read them for fun there's a lot of fascinating information here.
FAQ Directories and Collections
Ohio State's collection of Internet FAQs in HTML format. I usually check here, first. These are typically the ones that get posted to the *.answers Usenet newsgroups.