What are some alternatives?
Bitrix24 - Bitrix24 is a free (for small businesses) social enterprise platform. It is a united work space which handles the many aspects of daily operations and tasks. Create your own social intranet in minutes!
BuddyPress - WordPress social networking in a box.
Workplace by Facebook - Connect everyone in your company and turn ideas into action.
HumHub - HumHub is a free social network software and framework built to give you the tools to make teamwork easy and successful.
Zoho Connect - Zoho Connect is a team collaboration software that helps teams ideate, discuss, and work together, from any place, on any device.
Oxwall - Oxwall® is an open source mobile-friendly community website platform that is suitable for brand communities, interest-based social networks, and other online community projects. try demo Get Started. slide02 .