Re: pull mail with notifications, was Thinking outside the box - send envelope first

On 2013-03-17 12:33, John Levine wrote:
> Haven't you ever wondered why nobody has ever done the obvious hack to
> send people a message to tell them to look for updates in an RSS feed,
> rather than polling the feed?  That's why.

Maybe I'm missing something obvious, but isn't this the definition of 
what Pingomatic, Feed Shark, and even FeedBurner's own Pingshot service do?

Or does the patent specifically cover email in some fashion?

-- 
Dave Warren
http://www.hireahit.com/
http://ca.linkedin.com/in/davejwarren