Brightwurks, who develop Feed My Inbox, have just posted a blog article explaining the Real-Time Delivery of blogs, feeds and news to an email inbox. The article discusses polling and real-time protocols. They list the Twitter API as a real-time protocol although they do know it's not actually an example of a real-time protocol and explain this later in the post. I've just posted a comment clarifying that although the Twitter API is not a real-time protocol it does use a real-time technology ...
