Members Category is an add-in for WP-Members™ plugin that restricts specified categories to registered users.
Members Category is an add-in for WP-Members™ plugin. It has tested with WordPress® 3.3.2 and WP-Members™ 2.7.4. With Members Category plugin, you can choose some categories to be restricted and other categories to be free access. In front page and archive page, it suggests masking any restricted contents, too.