WordPress.org

WP-ViperGB is a WordPress plugin designed to replicate the appearance and behavior of the discontinued Viper Guestbook project. It makes it easy to add a stylish and user-friendly guestbook to your blog.

Features:

• Create user-friendly guestbooks without writing a single line of code.
• Lives in a standard WordPress page and uses comments for entries, so moderation and antispam functionality works as normal.
• Two-View layout provides one view for submitting entries and another for reading them.
• Automatic paging of entries to customizable length.
• Show icons for country, browser, and OS in visitor signatures.
• Admin-panel stylesheet selector allows easy skinning to suit your theme.
• No bloat: Uses existing WordPress faculties so no custom database tables are required.
• Simple PHP template function allows programmers to manually embed standalone guestbooks in any template they wish.

For a Demo, see the plugin's homepage.