RESOLVED:Thanks for your patience while we were investigating the issue you're having with accessing Documents and Google Talk.
Google's technical team hasidentified the root cause and were able to implement a fix for this issue. We recommend that you attempt access both Google Documents and Talk again. If it is not resolved on first try, please clear your cache and cookies.
UPDATE: The problem with Google Sheets should be resolved. We apologize for the inconvenience and thank you for your patience and continued support. Please rest assured that system reliability is a top priority at Google, and we are making continuous improvements to make our systems better.
Chat is still Experiencing issues
We are aware of a problem with Google Apps Drive and Chat and are working to identify and resolve the issue. Functionality that may be impacted by this problem includes: creating and viewing Google Documents and using Chat/Hangouts - check Google's status dashboard at www.google.com/appsstatus for more detailed information about this outage.