MixedGuests  

MixedGuests is a flexible and powerful web based guestbook system written in Perl. Features: Viewing/Adding Comments - Ability to sort comments by time or rating - Ability to view comments since a specific date - Multi-page display - Smilies - Special code - IP logging - Banning IPs - After initial configuration, everything is done via the web interface - Mass-pruning comments based on date - Email notification when new comments are added - Language file.

Price: Free (GPL)

   Simple Guestbook  

This is a simple guestbook script that allows visitors to leave entries on a website. It's only requirement is that perl is installed, and file permissions can be changed. It doesn't require any changes to run, so it is perfect for people who don't want to edit code. However if some colors need to be modified, it can easily be done with variables in the main file.

Hosting Requirements: Linux, Windows; Perl 5.8.0+
Price: Free

   All4chat.com Guestbook  

This Guestbook's features included: Entries are limited to a specific number per page - Set your own admin password to delete bad message - No limitation of posting - Multiply pages supported an dmore.

Hosting Requirements: Unix
Price: Free

   Midmart Guestbook Server  

Features: Unlimited number of members - Email verification while membership - Members can change the color, font, size and header of their guestbooks at any time - Members have the ability to use up to 4 additional fields in their guestbooks - Members have their own unique username and password - Members can edit their accounts - Members can delete their accounts - Members can delete all entries from their guestbooks - Members can delete a specific entry from their guestbooks and more.

Hosting Requirements: Unix
Price: $40

   Symbio  

Symbio is an Open Source site commenting system, written in Perl and released under the GNU General Public License. So basically, it allows visitors of your web site to comment on its content. Unlike with regular guestbooks, you can have comments for as many articles as you like.

Price: Free

   PSGuestbook  

PSGuestbook offers the utmost in configuration and options. There are numerous options on display and inter activity that you can turn on or off with the click of a mouse. You can also configure the posting form and the display of postings to your exact liking using the built in template features. You have complete control over the content of all e-mail messages the program sends out. This guestbook even has a fantastic statistics reporting mechanism so you can see the amount of total hits and unique hits your guestbook receives!

Hosting Requirements: Unix; Perl5+
Price: $25

   Guestbook*Star  

Web interactivity is the essential ingredient for a successful Internet-based business, whether it is commercial, academic or social. It is imperative to know your customers' and visitors' opinion to gauge your site's success and identify future online strategies. Creating an online guest-book gives visitors to your site a user-friendly format to provide valuable feedback, at the same time reducing your efforts in collecting and recording this information.

Price: $49

   psGuest  

psGuest is an automated application that allows the user to manage one or more guestbooks from one location. You can add as many guestbooks as you would like. Many sites use a guestbook to get comments about their web site. This guestbook can double as a single thread forum as well.

Hosting Requirements: Unix, Linux, FreeBSD, Windows; PHP4.x.x
Database: MySQL
Price: $59

   Fresh Guest Book MySQL  

Fresh Guest Book is a simple to install, easy to use yet highly customizable Guest Book for everyone. From for the internet newbie to the advanced HTML programmer. Customize the Guest Book layout through the admin panel on the fly and never touch the HTML template or customize the whole Guest Book layout through only one (!) HTML template.

Price: $19

   GuestFriend  

Guestfriend is a simple yet powerful, free guest book. All texts and layouts are 100% customizable. You have complete control over the look and feel. Also comes with an admin control panel and installation interface to make installation easy.

Hosting Requirements: Unix
Price: Free