This document provides an overview of the Liferay platform and its key products and features. It describes Liferay Portal as an enterprise portal that incorporates search, content management, collaboration, social networking and more. It outlines the features of Liferay's built-in collaboration suite and content management system. It also summarizes Liferay's social networking capabilities and mentions that Liferay is open source software with over 7.5 million downloads that supports a wide variety of hardware, operating systems, databases, application servers and standards. The document concludes by presenting case studies of organizations using Liferay portal.