This post is inspired by a recent Slashdot story about the general pathetic state of Linux documentation. When skimming through the usual hate-spitting comments there, I thought, well why not take the half-full angle and see what we could learn from the Really Good (TM) docs?
So here guys, let's name the best documentations of your choice here and share the joy. For the sake of relevance I recommend confining the discussion within the range of:
* Fedora, or at least Linux, software,
* "Official" docs (man pages, online help/tutorial, etc. That's excluding wikis, mailing lists, Usenet groups, or Web forums etc.)
And of course you're free to break these rules