Liferay Portal has rich and strong functionalities for online content management. Before we take up its content-related portlet applications, we will review some concepts in content manipulation.
Content shown on a web page can be classified as follows:
Text
Images
PDF files and files of other formats
Videos
The images, formatted files, and videos are relatively static – they do not change very often. Some texts, such as online advertisements, do not change very often either. Other texts, such as the quantity of a certain pair of shoes at http://www.zappos.com/, change very often – they are relatively dynamic.