If you have a blog or a website with a RSS (real simple syndication) feed and you haven't heard of the new PuSH protocol then I have a treat for you. A little while back, Google announced a new open source protocol quirkily called PubSubHubbub , or PuSH for short. In Google's own words PuSH is "a simple, open, server-to-server web-hook-based pubsub (publish/subscribe) protocol as an extension to Atom and RSS." And now, without further adieu,