When I click on the link, it redirects me to http://www.scribd.com/doc/969071/All#full. At a glance, view-source appears to grab each page from http://scribdassets.com. I think Scribd is clearly serving the material from their own site. Is there a different mode for cases where they have permission from the copyright owner?
By which I mean, it just appends the posted URL as a scribd url parameter, it doesn't actually "scribe" it...