Janos Ver

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

tom.maitland

Restrict Page Parents is a lightweight plugin to enhance the user permissions features of WordPress. It changes the option to set a page parent to only show pages owned by the current user. It can also be configured to force users to select a parent page before they’re able to publish or save.
Restrict Page Parents prevents users from adding their own pages under sections of the site they do not own or are able to manage. Users can be confined to their own section of the website, making your site permissions much more secure.
Permissions can be configured for each user role, each individual user and turned on/off based on post types.
You can find out more about the plugin <a href="http://www.tommaitland.net/restrict-page-parents" rel="nofollow ugc">here</a> or on the <a href="https://github.com/tommaitland/rpp" rel="nofollow ugc">Github project page</a>.

Restrict Page Parents

Restrict Page Parents restricts page parent options to those owned by the user, with the option of forcing a page parent.

WP JV Post Reading Groups vs Restrict Page Parents