zChain book over 2,000 users a version V2.10. Supports multi-user mode. 2. Online guest book online applications opened. 3. Moderator online changes with immediate effect. 4. New messages automatically sent to the moderator Box. 5. Visitors can show that the IP and voicemail time. 6. Each moderator can manage their own version of the message. 7. Search messages, fast, strong function. 8. ABC functions (only fed before we can see). 9. Guestbook can automatically filter out duplicate postings. 10. Fed can define an information book shows the head and tail to display information.