Samples - http://code.google.com/p/buzz-codelabs/ http://code.google.com/p/buzz-mood/ http://code.google.com/apis/buzz/v1/oacurl.html http://code.google.com/apis/buzz/buttons_and_gadgets.html

Pubsubhubhub, A simple, open, server-to-server web-hook-based pubsub (publish/subscribe) protocol as an extension to Atom and RSS, heard of buzz - http://code.google.com/p/pubsubhubbub/wiki/DeveloperGettingStartedGuide

Door of buzz - http://oauth.net/documentation/getting-started/