Xoops

Although XOOPS had begun being the portal system initially but today it is turning to a web application platform serving as a web framework for use by small, medium and larger websites via installing the modules i.e. a smaller XOOPs installation may be used like a personal weblog or journal but is expandable and customizable like user may add freeware, ads or anything they want.

Since it is quite popular in the world, a number of books have been penned on XOOPS in a number of languages.

Key features include the likes of community, database, advanced access control layer, personalization, user management, international languages support, some SEO add-ons and more.