Dekisugi

Normally, visitors of a wordpress blog can view all published posts, whether or not they are being logged on. You can use this plugin to implement an access control whereby assigning the “Subscribed” category to any posts you want to control access The plugin will automatically hides the content of those posts to the non-logged-on users. This can be use as a simple membership system. For enhanced version of this plugin, visit <a href="http://dev.coziplace.com/premium-wordpress-plugins/access-control-plus" rel="nofollow ugc">official</a> page.
** if your wordpress blog have the Jetpack plugin installed, do not enable the email subscription feature. Jetpack bypasses the system and get the contents of all posts and send them to any subscribers regardless of any control access. **

Access Control by Category

Control access to registered users only of certain posts by assigning the "Subscribed" category to those posts. In additions, any texts wit …

David Cramer

Adds user access control to pages
Features include:
<ul>
<li>Access group creation</li>
<li>User group assigning</li>
<li>Redirect un-logged in user to defined login page</li>
<li>Redirect public users to login page.</li>
<li>Redirect Logged in users to Access denied/upgrade notice page</li>
</ul>

Userbase Access Control

Adds user access control via admin defined user groups on a per page/posttype level

Access Control by Category vs Userbase Access Control