Comet and Reverse Ajax: The Next Generation Ajax 2.0 (FirstPress) (Paperback) - Common

One of the most basic laws of a web application is that the client, not the server, must initiate any communication between the two. There are a number of common-use cases where, ideally, the server would like to talk to the client-dashboards and monitoring apps, chat rooms and other collaborations, and progress reports on long-running processes. Comet (a.k.a. Reverse Ajax) provides a mechanism fo...