123webmaster.com
   Hosted message board systems arranged by date and editor reviews.
   http://www.123webmaster.com/Scripts/Remotely_Hosted/Extras/WWWBoards/

CodeJunction.com
   Provides a list of remotely hosted discussion board providers both free and commercial.
   http://www.codejunction.com/scripts/remotely-hosted/discussion-boards

Developer Tutorials
   Contains a quality list of remotely hosted discussion boards sorted by ratings.
   http://www.developertutorials.com/scripts/637/665/

Free Center
   Ranking and reviews of free forum providers.
   http://www.freecenter.com/forums.html

Hotscripts.com
   Directory which lists free and commercial message board providers.
   http://www.hotscripts.com/Remotely_Hosted/Discussion_Boards/

Scripts.com
   Contains links to remote discussion board services both free and commercial. Sorted by date added.
   http://www.scripts.com/remotely-hosted-scripts/discussion-software/

The CGI Resource Index
   On-line message forums organized by ratings and comments.
   http://cgi.resourceindex.com/Programs_and_Scripts/Remotely_Hosted/Bulletin_Board_Message_Systems/

The Perl Archive
   Comprehensive directory of message board services listed by user ratings and reviews.
   http://www.perlarchive.com/Remotely_Hosted/BBS/