What is a guestbook?
On the internet, a guestbook is a logging system that allows visitors to leave a public comment. It is possible in some guestbooks for visitors to express their thoughts about the website or its subject. Generally, they do not require the writer to create a user account, as it is an informal method of leaving a short message. The purpose of a guestbook is to display the kind of visitors the site gets, where they come from, and gain feedback from them. This allows the webmaster to evaluate and improve their site.