These sites have most of the same features of the CMS sites but without the ability to modify the content or have any of the complex facilities provided by a CMS site. 

A content management system (CMS) allows the website owner to perform publishing, editing and modifying content, organizing, deleting as well as maintenance from a central interface. Websites with a CMS usually contain a lot of information and images and can also include more complex facilities such as online shopping and catalogues.

These are special types of Content Management System (CMS) websites that also include more complex facilities such as Business indexes, Membership registration and management, Members only areas, Events management.

These are another special type of Content Management System (CMS) that is specifically designed to provide all the components to manage a complete on-line shop website. A full E-Commerce site can manage several thousand different inventory items, provide inventory control, handle shipping costs and various payment gateways.

From a customer's point of view, an E-Commerce site can showcase all your products with photos, short and long descriptions, prices and also highlight New products,  Special offers, Popular items as well as showing stock levels.