Role Scoper

CMS-like permissions for reading and editing. Content-specific restrictions and roles supplement/override WordPress roles. User groups optional.

Capability Manager

The Capability Manager plugin provides a simple way to manage role capabilities. Using it, you will be able to change the capabilities of any role, add new roles, copy existing roles into new ones, and add new capabilities to existing roles.

WP-Members

* Can block posts, pages, both, or none by default

* Can override the default block setting at the individual post/page level

* Login/Registration inline with content rather than the WP login page

* User registration and member information management integrated into your theme

* Sidebar login widget

* Can set fields that will display in the registration form

* Can set fields to be required

* Notify admin of new user registrations

* Hold new registrations for admin approval

* Turn registration off completely (for admins that want to control registrations in some other way)

* Show excerpt on pages/posts for better SEO

Members

* Edit Roles: Edit (and delete) specific roles and each role’s capabilities.

* New Roles: Create new roles for use on your site.

* Content Permissions: Control what roles have access to specific posts and pages.

* Shortcodes: Use [shortcodes] to restrict/allow access to content.

* Template Tags: Functions to be used within your WordPress theme.

* Widgets: A login form and user list widget for use in any widget areas.

* Private Blog: Force visitors to log in before viewing your site.

Members Only Menu Plugin

This plugin allows you to mark a page as “Members Only”. Once this is done, the user must login to view the page. However, you can still add the page to the menu, and it will then ONLY show up if the user is authenticated. That way you can have more items for logged in members on your website.

s2Member ( Membership w/ PayPal® Integration ) ~ now Multisite compatible!

s2Member is an extremely powerful ( and free ) membership management system for WordPress®. The s2Member Framework ( free ) integrates seamlessly with PayPal® ( very easy ), and fully supports recurring billing, with the ability to track affiliate commissions on a recurring basis. s2Member supports custom Pages for registration ( including Custom Registration Fields ), account access, and a whole lot more. Now compatible with Multisite Networking too, and even with BuddyPress if you like!