Easily turn existing Atom and RSS feeds into real-time streams.
PubSubHubbub is a simple, open, server-to-server publish/subscribe protocol as an extension toÂ Atom and RSS. Parties speaking the PubSubHubbub protocol can get near-instant notifications viaÂ WebHook callbacks when a feed they are interested in is updated.
The protocol is decentralized and free. No company is at the center of this controlling it. Anybody can run a hub, or anybody can publish or subscribe using open hubs. Below is the list of products at Google that have already adopted PubSubHubub– and more are on the way!