Lazarus is a free guestbook script written in PHP that uses your MySQL database for storage and is based upon the excellent Advanced Guestbook script from Proxy2. Lazarus has more features and several layers of anti spam protection to make one of the most feature rich and spam resistant guestbook scripts available for free.
Use Captcha or Saptcha to prevent automated posting
Each guestbook generates a unique form
Time delay before guests can post
Email address. You can even make email addresses required