A guestbook is always an important part of a website, as it makes for interaction between the visitors and the webmasters. By means of a guestbook, visitors can comment on the site, and leave their suggestions and ideas, and the webmaster benefits from these in turn. At guestbook.com, it is possible to register for a guestbook service that operates in an uncomplicated manner, as the guestbook itself is hosted on the server of the provider, and all the maintenance is also done by guestbook.com. The guestbooks provided are customizable, and feature no advertising banners. Likewise, options such as profanity filters are available, together with HTML filtering and image posting .To register, some forms have to be filled in online, which cover both personal and account information such as site name and site URL. Payment options include credit card and PayPal, and all major credit cards are supported. Furthermore, accounts can be upgraded anytime.