Join comet developers from both GlassFish and Tomcat in this presentation about AJAX and Comet. Comet, sometimes known as Ajax push, is an advanced web technology used to enable real-time client/server messaging over the HTTP protocol. We will introduce the comet technique, discuss problems and solutions around developing scalable and secure applications using AJAX and Comet and finally present a use case study, the challenges and rewards behind a real world Comet/AJAX deployment.