Liferay Portal is widely recognized as one of the premier portals on the market today. It is an open source product that makes it very easy to create a well-integrated, dynamic web site. Its functionality includes many of the commonly used applications on web sites today: content management, message boards, wikis, blogs, chat, and more. Liferay in Action shows developers how to use Liferay Portal's powerful development platform in order to jump-start the creation of their own web site. They will learn how to use Liferay's Software Development Kit to create portlets (web applications which run in a portion of a page), themes, layout templates, and hooks, and how to leverage its powerful APIs to implement and integrate their own applications.