Recommended Listening: CometD and Push Technology Greg Wilkins talks about Comet (that “long-poll” AJAX approach to approximate two-way communication between client browser and web server) in this episode (48min) of Phil Windley’s Technometria. As well as introducing the technique he offers opinions on how to use it both clientside and serverside, and how other technologies such as websockets and SPDY fit in. I felt vaguely ignorant of this stuff before listening to the interview; afterward I feel vaguely informed (albeit by an interested party who maintains the CometD library, and Jetty.) - Anthony Bailey