YapGB – Yet Another PHP GuestBook Script

YapGB is a free guestbook system written in PHP.

Features:

> No database needed, it uses a plain text file for storing entries.
> Administrator login interface for deleting/editing entries.
> Fully customizable appearance through a theme system.
> Custom timezone.
> BBCode and smilies support.
> IP address logging and banning.
> Visual confirmation code to prevent bots from signing the guestbook.