HivePress - HivePress is a free WordPress plugin that allows you to build any type of directory and listing websites. It's incredibly easy to use and highly customizable.
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.
SocialOomph - Boost your productivity with advanced post scheduling tools. We help individuals and teams.
MS SharePoint - Share, organize, and discover information with Microsoft SharePoint. Learn about SharePoint Online, OneDrive for Business, and Apps for SharePoint
phpListings.com - Start your own business directory website with customizable widget-based templates and effective listing monetization tools.
Communifire - Enterprise Social Collaboration Software