info is lightyears ahead of
man in terms of features, with sub-pages, clickable links, topic-spanning search, clean html- and latex-export and efficient interactive navigation.
But man pages are still the de-facto standard for getting quick information on a GNU/Linux system.
This guide intends to help you change that for your system. It needs GNU texinfo >= 6.1.
Update: If you prefer vi-keys, adjust the function to call
info --vi-keysinstead of plain
info. You could then call that function