The Advanced Guestbook is a fully standalone guestbook script that allows visitors to leave comments / entries on your website. Some of the features include the ability to show the most recent comments and how many recent comments to show. This script also supports gravatars, just in case you don’t know what that is, its a website that allows you to upload an image and associate it with an email address. Once setup, you can use your email address on any site that supports gravatars and it will use the image as your profile / signature image.