Guestbook is one of the most popular interactive tools on the Internet. Its aim is to collect entries and comments in visitors’ books that are valuable source of information about service. Good selection of entries (for instance VIPs and special visitors) would function as an advertisement and confirm the quality of service. Guestbook is equipped with ‘moderator’ option that allows for acceptance or refusal of entries before  their  edition,  and  auto-responder option whose function is to send information to visitors     (f.e. a thank-you letter). Moreover, the possibility of defining the number of entries on the one www site is the positive advantage of our product.