The trial contains SocialEngine PHP as well as every official SocialEngine plugin we sell (Blogs, Classifieds, Polls, etc). In order to get all of the same features when you buy, you'll have to purchase the plugins you want to use or purchase the Advanced plan.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.free social bookmarking. https://freesocialengine.com/