from Google Apps:
UPDATED 11/3: If an administrator account switches to Gmail’s new look, the ‘Manage this domain’ link moves from its current location, to the Settings gear menu in the upper right of the Gmail inbox. More Details.
Google Apps administrators have a link available in their Gmail inbox which allows them to easily access their administrator control panel. This link is an alternative to logging in at http://www.google.com/a/yourdomain.com where yourdomain.com is the name of the admin’s domain.
This ‘Manage this domain’ link is temporarily moving from its current location at the top right of the inbox, to the bottom right corner of the inbox, just underneath ‘Last account activity’. This relocation is related to the new look being rolled out to Google Apps services and we’ll provide more updates on its final location when available.
Google Apps, Google Apps for Business, Government and Education
All languages supported by Gmail
How to access what’s new:
In an administrator’s Gmail inbox, scroll down and the ‘Manage this domain’ link is now located on the bottom right side.