The Emacs FAQ is available from within Emacs by typing the command
‘C-h C-f’. The FAQ is also available on the Web.
The old Emacs FAQ was maintained by Reuven M. Lerner. It was available in numerous file formats and included the Texinfo source format. The site was shut down as of 2007-05.
There is also a collection of questions frequently asked in #emacs on this wiki: CommunityEmacsFAQ
Questions not answered in these FAQs nor found in EmacsManual can be posted to the most relevant article on EmacsWiki, or added to OpenQuestions.