is very interesting...

In about 30 minutes I was able to get a website I maintain notifying me when certain things happen using a single line of Ruby code:

res = Net::HTTP.post_form(URI.parse(NOTIFY_URL), {'text'=>'Somebody is looking at that page.', 'link'=>'', 'title'=>'Website', 'api_key'=>NOTIFY_API_KEY})

Very cool - I'm going to add this to a few other sites where it makes sense. I've always wanted Growl notifications when certain things happen on sites I manage - this is the best way I've seen to make it happen.