Amazon's announcement that its S3 service now has a service level agreement (SLA) is getting a lot of coverage, but I still can't use it for class projects: Ontario's Freedom of Information and Protection of Privacy Acts (FIPPA) don't allow me to store sensitive information (e.g., students' work) in jurisdictions that permit secret warrants, like those mandated by the USA PATRIOT Act. It wouldn't even help if Amazon ran a cluster farm in Canada, since the PATRIOT Act applies to subsidiaries of American firms operating in other countries as well. Funny, sort of: an American government shreds the Constitution a little, and my students can't play with enterprise-scale clusters... Later: see also this discussion of courseware built around such technologies --- again, off limits to Ontario schools thanks to the current administration in Washington.