Owner
Google
The status of this product is "Pre-Launch"
Description:
PubSubHubbub is an open, server-to-server web-hook-based pubsub (publish/subscribe) protocol as an extension to Atom, designed to speed up
Website:
http://code.google.com/p/pubsubhubbub

Product Details

Update

PubSubHubbub is an open, server-to-server web-hook-based pubsub (publish/subscribe) protocol as an extension to Atom, designed to speed up RSS and improve its competitive edge.

Parties (servers) speaking the PubSubHubbub protocol can get near-instant notifications (via webhook callbacks) when a topic (Atom URL) they're interested in is updated. These hubs are decentralized and not directly related to any specific company.