Wow, Google Docs now has 'Google Groups Disease'. If you're not logged into Google, you can view this document. But if you are logged in, they require you to login again to view.

Direct link to the presentation: http://www.umiacs.umd.edu/~jimmylin/cloud-2008-Fall/Session5...

Maybe Slideshare is better?

Thanks. Weird - it worked fine for me and I was logged in.