DRBGuestbook is a simple guestbook script that doesn't require a database. It allows you delete entries and ban IP addresses through an easy-to-use, password protected administration interface. You can also receive an e-mail notification anytime someone signs your guestbook. Entries containing bad words can be blocked. Includes a "captcha" challenge-response test to reduce spam postings. Flood protection is also included. Date format and time zone can easily be customized.