DotNetNuke

DotNetNuke is an open source web application framework ideal for creating, deploying and managing interactive web, intranet and extranet sites. DotNetNuke can support multiple portals or sites off of one install. DotNetNuke includes a multi-language localization feature which allows administrators to easily translate their projects and portals into any language.
Category	CMS
License	BSD License
HomePage	http://www.dotnetnuke.com/