This article explores both of these sides ([the Publisher in Part 1 and] the Subscriber in Part 2), and introduces the basic code to get each working. The article also opens with a general introduction to this new protocol which you will definitely be hearing more about (especially if you run a blog) and contrasts it to its nearest rival, rssCloud.

He talks about the differences between it and the rssCloud functionality and gives an example of its use with the Zend_Feed_Pubsubhubbub Zend Framework component. His sample shows how to set up a publisher andn define topic and hub URLs for the service to use.