OpenBook is for book reviewers, book bloggers, library webmasters, anyone who wants to put book covers and data on their WordPress blog or website.
WP Contact Manager is a different kind of theme for WordPress. With a little bit of work (outlined in detail below) it turns WordPress into a contact manager. You can add contacts through the regular admin interface, tag contacts, search them and more.
Disqus is a powerful comment system that easily enhances the discussion on websites.
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