Oxford takes to extraordinary measures and blocks Google Docs from its network users (for 2.5 hours) to stem the tide of aggressive phishing attacks.
Unclear from this article (or the comments) as to whether or not Oxford is a Google Apps customer (which would provide additional security and URL/network management tools) or is simply blocking an overly popular service.
Network management and security are core competency requirements of any cloud-based services. If any of these services are mission critical to your business or organization, you need to understand your options and recourse if you do not have direct end-to-end control of how your users are leveraging said service(s).
