Sometimes you just want a simple guestbook, sometimes you want a full fledged forum system. But when you want it wading through massive amounts of crap software out there sucks your will to live.
See also: BlogSoftware, WikiSoftware
Guest Book Software
None of these require a DataBase as I think that's stupid for a guestbook.
- Big Sam
- (PHP) Simple, un-ugly guestbook.
Forum Software
- Drupal
(PHP/ MySql) Though also full featured BlogSoftware Drupal performs well as a simple bulletin board / forum.
- PHPBB
- The ultimate forum software.
- YABB
(PHP/ MySql) A possible contender to PHPBB.