This morning at approximately 10:30 AM CCS began receiving reports that people were having problems accessing Google Spreadsheets. Google is aware of the problem and is investigating:
http://www.google.com/appsstatus#hl=en&v=issue&sid=6&iid=2cae931410c40766542f8253d9ef8275
CCS will update this service alert when Google provides more information or resolves the problem. Google Docs and others services appear to be unaffected.
Update 12:06 PM: The problem with Google Spreadsheets has been resolved by Google.