JamRizzi Technologies

<ul>
<li>Allow anyone to sign your guestbook or limit it just to users.</li>
<li>Lives in a standard WordPress page and uses comments for entries</li>
<li>Uses WordPress built-in moderation and antispam functionality</li>
<li>Two-View layout provides one view for submitting entries and another for reading them</li>
<li>Compatible with mobile themes</li>
<li>No custom database tables are required</li>
<li>Simplistic design makes it extremely user friendly</li>
<li>Add a date stamp so you know when people signed your guestbook</li>
<li>Change the view names</li>
<li>Internationalization support</li>
<li>Google reCaptcha support</li>
<li>100% free and open source</li>
</ul>

Rizzi Guestbook

Create a guestbook using the built-in commenting capabilities of WordPress

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WP CommentWidgetizer is a simple widget that takes one of the approved comments made on any page or post of your site and displays it in the sidebar.
It can be used to manage guest books, or more simply to randomly export to your homepage comments spread deeper in your site pages in order to make it visible to your visitors not reaching the post or page holding those comments.
You can see the CommentWidgetizer widget used as guestbook homepage exporter <a href="http://www.photos-dauphine.com/" title="Check out here the WP CommentWidgetizer widget in action" rel="nofollow ugc">here</a>. French reading visitors will get additional insights on this <a href="http://www.photos-dauphine.com/wp-commentwidgetizer" title="WP CommentWidgetizer widget page" rel="nofollow ugc">widget genesis page</a>.

WP CommentWidgetizer

WP CommentWidgetizer is a simple widget that takes one of the approved comments made on any page or post of your site and displays it in the sidebar.

Rizzi Guestbook vs WP CommentWidgetizer