Social Engine Forum
Web Community based on a CMS
Social Engine Forum, also known as SEF, is a web site and a virtual collaborative community which is aimed at creating a platform for members to share knowledge covering a large number of topics related to Social Engine. As of 2018 April, it had gained over 92,000 members, 130,000 posts and 25,000 topics.
It was launched on 2010 April with several of my friends and currently it is the largest Social Engine resources sharing community in the world.