Thanks to what I think is a flaw in their intranet, I've had a little insight into Shell Oil's monitoring of the web - they're clearly a little worried about what we think of their disgusting behaviour.
It showed up in my visitor logs - a hit from Shell Email Portal. Clicking on the link gave me a login page with the username and password helpfully already filled in. Unfortunately, I can't simply copy and paste the password for future use, but I'm sure a more highly skilled cracker could manage it.
In the meantime, have a look for yourself:
Or reacquaint yourself with Shell's ugly side over at Shell Guilty.