befriend PubSubHubbub
Please watch this short video to get an overview of PubSubHubbub
http://www.youtube.com/watch?v=B5kHx0rGkec
and go through the overview slides on
http://code.google.com/p/pubsubhubbub/
Also feel free at any time to browse around the PubSubHubbub projects pages and have a look through the Working draft of how the PubSubHubbub protocol should currently be implemented
http://pubsubhubbub.googlecode.com/svn/trunk/pubsubhubbub-core-0.3.html
TODO: What tasks to do?
Perhaps something based around ..
http://code.google.com/p/pubsubhubbub/wiki/DeveloperGettingStartedGuide
http://code.google.com/p/pubsubhubbub/wiki/Hubs
http://code.google.com/p/pubsubhubbub/wiki/SubscriberClients
.. exploring ..