Maven Member™ is a WordPress plugin by Emiliano Jankowski to make your WordPress blog a membership driven site.
The plugin restricts selected WP content to be viewable by registered site members. Unlike other registration plugins and WordPress® itself, it puts the registration process inline with your content (and thus your branded theme) instead of the native WP login page. Maven Members™ works “out-of-the-box” with no modifications to your theme, but it is fully scalable for those that want to customize the look and feel, or want to restrict only some content
Perfect for newsletters, private blogs, premium content sites, offering premium content to subscribers
Can block posts, pages, categories
Login inline with content rather than the WP login page
Can set fields that will display in the registration form
Hold new registrations for admin approval