Days ago I started experimenting with a technology called comet. I setup a little demo that showcased real time communication between two different browsers. They connected to a jetty application provided by the ActiveMQ, which I used as middleware to reach my Java backend application. It’s nice seeing the two browsers reacting to what’s going on on the other one with only a small delay. I had to deal with some issues in the process and I made some discoveries summarized in my post in ActiveMQ’s users mailing list.