The WCF Web Programming Model allows developers to expose WCF Web services through HTTP requests that use "plain old XML" (POX) style messaging instead of SOAP-based messaging. For clients to communicate with a service using HTTP requests, an endpoint of the service must be configured with the <wsHttpBinding> that has the <WebHttpBehavior> attached to it.
Support in WCF for syndication and ASP.AJAX integration are both built on top of the Web Programming Model. For more information on the model, see Web Programming Model.