Guestbooks allow visitor to your page to leave comments and information about themselves and read information left by other visitors, they are a good way to get visitor feedback.

Choosing a hosted service (listed in the main category) involves less work than a script-based solution (see CGI Scripts sub category), but ad based guestbook service will require their banner advertisements displayed on the pages and you may have less flexibility. You are also dependent on the continued availability of their service. Many cheaper webhosting services may not allow you to run CGI Scripts, limiting you to a hosted solution.

Guestbook services listed here can be pay, ad-supported, or free.