Yammer - Yammer is a leading enterprise social network used by more than 200,000 companies worldwide, including 85% of the Fortune 500, to get work done smarter and faster. Sign Up Today.
Ultimate Member - The easiest way to create powerful online communities and beautiful user profiles with WordPress.
MS SharePoint - Share, organize, and discover information with Microsoft SharePoint. Learn about SharePoint Online, OneDrive for Business, and Apps for SharePoint
WP-Members - WP-Members is a free membership management framework for WordPress that restricts content to...
Communifire - Enterprise Social Collaboration Software
WooCommerce Memberships - Give members access to restricted content or products, for a fee or for free.