The Easy Drupal Admin Manual (EDAM) is a manual for a class of user that gets overlooked by most documentation: the non-technical administrator or editor who isn't setting up a Drupal site, but just wants to create content and perform simple configuration on an existing site.
EDAM is finally getting a long-overdue updating for Drupal 6, too. So far, the changes are mostly tweaks to details of administration forms and some terminology; where simple admin and editing are concerned, the differences between Drupal 5 and 6 aren't great.
I did take the chance to clean up a spotty and repetitive few pages on using text editors and image editors, such as FCKeditor and IMCE. Those are now condensed into one page, Using Text and Image Editors. The overview there also tries to be general, rather than looking specifically at FCKeditor or TinyMCE alone; it's not possible to address in detail the infinite configurations of text editors and image editors and file browsers, and all possible versions there of, that might pop up on a Drupal site.
The updating is still in progress, reaching only the Organizing Your Content page so far. It should all be completed soon, after which new manual pages can come on board. If that'd be useful, please say so! And if you know any newcomers to Drupal who can make use of a fairly simple end-user manual, send them to EDAM.