FAC Guestbook is an open source ASP Guestbook Project.
My Guestbook is an easy-to-use, easy-to-install, fully templatable guestbook
Alain's Guestbook script allows you to manage multiple users entries
BS Guestbook allows site visitors to add comments for all to see.
MCG Guestbook is a simple yet effective guestbook script.
myPHPscripts Guestbook is a simple guestbook with customizable colors
ASP Guestbook script is a guestbook
Phoca Guestbook is a Joomla! component
FG Guestbook is a really fast and powerfull guestbook written in Perl.
PS Guestbook is Guest book you can run from your website
Max's Guestbook is a simple PHP based guestbook script.
Guestbook is a Python script that allows you to add a 'guestbook' facility
Angora is a simple and powerful PHP/MySQL guestbook
Perl Guestbook - A simple guest book script
add a completely customizable guestbook to your website
This is a script for Micro Guestbook
GuestBook PHP is a PHP guestbook with integrated spam protection
PHP MySQL guestbook is a simple guestbook script.