I actually love the idea of this tool in general. Would be neat to open it up where you can just paste in the URL of any FB page and get the counter/deltas!<p>I'd also suggest adding a cumulative delta counter, rather than just the delta per poll. That way I can load up the page and come back an hour later and get an even better feel for the changes. Maybe also add a rate (delta/hour) field?<p>Awesome work!