PubSubHubbub, a 20% time project of two Google engineers, Brad Fitzpatrick and Brett Slatkin, launched a few weeks ago. In addition to being a tongue-twister, PubSubHubbub is: A simple, open, server-to-server web-hook-based pubsub (publish/subscribe) protocol as an extension to Atom (and RSS). Parties (servers) speaking the PubSubHubbub protocol can get near-instant notifications (via webhook callbacks)… Read More