I develop projects using Liferay Portal as it is a free and open source enterprise portal project written in Java and distributed under the GNU Lesser General Public License[2] and optional commercial license.[1] The Liferay project additionally supports Liferay Social Office, Liferay Sync, Liferay AlloyUI, Liferay enterprise Connectivity Apps and the Liferay Marketplace. It is primarily used to power corporate intranets and extranets.[3]
Liferay Portal is a web platform with features commonly required for the development of websites and portals. Liferay includes a built-in web content management system allowing users to build websites and portals as an assembly of themes, pages, portlets/gadgets and a common navigation.[4] Liferay is sometimes described as a content management framework or a web application framework. Liferay's support for plugins extends into multiple programming languages, including support for PHP and Ruby portlets.[5]
Although Liferay offers a sophisticated programming interface for developers, no programming skills are required for basic website installation and administration.