Inspired by the latest Web technologies and built on top of the Web parts technology, MonoX features an intuitive, user-friendly user interface that supports drag and drop editing, WYSIWYG interface, advanced templating engine and personalization.
Fast. Powerful. Flexible.
It provides everything you need to build fully-featured social environments, including user profiles, third-party authorization, user relationship modules, a multi-user blog engine with automatic anti-spam protection, photo albums, customizable group architecture, discussion boards, file galleries, support for activity streams, messaging, chat, video sharing, walls and comments.
It comes at the price you cannot beat
MonoX is totally free for both commercial and non-commercial usage scenarios. You pay only if you need framework's source code or a dedicated priority support contract.