The mailing lists
From Rivendell Wiki
The mailing lists are a very good place to get help on Rivendell.
Current Rivendell mailing list archives can be found at http://groups.google.com/group/rivendell-dev (Covering Mar 2007 to present) and http://groups.google.com/group/rivendell-programmer (Also covering Mar 2007 to present)
ARCHIVE DOWN --> The historical archives appear to be restored at http://www.radioallday.net/phpbb/index.php in a read-only configuration, they cover from 2004 to sept 2007 for rivendell-dev archives and 2004 to jan 2007 for rivendell-programmer archives. For someone starting out with Rivendell these provide valuable info about the snags you may encounter when setting up your box and should not be overlooked, also it is Powered by phpBB which makes it nice 'n easy to search.