John Godley

User Permissions is a plugin that takes the simple WordPress permissions models one step further and allows you to assign permissions to specific posts that restrict users or roles from reading or editing it.
To summarize:
<ul>
<li>Restrict reading or writing of post or page according to the user’s role (i.e. prevent non-registered users reading a post)</li>
<li>Allow specific users to read or write a post or page</li>
<li>Permissions are assigned directly inside the post itself – there is no additional interface</li>
<li>Fully localized</li>
</ul>
<h3>Documentation</h3>
Full documentation can be found on the <a href="http://urbangiraffe.com/plugins/user-permissions/" rel="nofollow ugc">User Permissions Page</a> page.

User Permissions

This plugin provides the ability to configure post-specific permissions.

Janos Ver

This plugin will enable you to
<ul>
<li>
Create Reading Groups and associate them with users and private posts and private pages
</li>
<li>
Once these users logged in they will see those private posts and private pages which you granted access to
</li>
<li>
Publish your posts and pages to general public as usual
</li>
</ul>
Your users will not be aware (unless you tell them) of what Reading Groups they are part of (if any).
Translations
<ul>
<li>
Hungarian – Janos Ver (last updated for plugin v1.9)
</li>
<li>
Czech – TomKom (last updated for plugin v1.9)
</li>
</ul>

WP JV Post Reading Groups

Thank you. Your work really saved me a lot of time. Thanks again

Very good

Easily create posts and pages visible only for selected users of your blog

User Permissions vs WP JV Post Reading Groups