Just as there are numerous AJAX frameworks, its counterpart Comet (a.k.a server-side push) technique has also blossomed a series of frameworks that ease its use. In this two part series, Jean-Francois Arcand takes a look at one such framework named the Atmosphere Framework. Read Jean-Francois Arcand's post 'Getting started with the Atmosphere Framework part II: Writing a REST application with Comet support': http://weblogs.java.net/blog/jfarcand/archive/2009/05/getting_started_3.html Part I of this series can be found here: http://weblogs.java.net/blog/jfarcand/archive/2009/03/getting_started_1.html