In a fairly bold move to block out Amazon's attempt to sell Single Sign On to businesses, Microsoft will upgrade AD in Azure to support SSO for a variety of products, up to and including competitors such as Google who also offer an Office Suite in the cloud.  This will allow users access to most of their online resources as soon as they have logged onto a machine using their AD credentials.  For admins comes the ability to monitor the SSO system, including the ability to monitor suspicious logins.  Check out The Register for more.

"Microsoft has expanded the capabilities of its identity and access management infrastructure to allow for single sign-on of a multitude of corporate apps.

The upgrades to Windows Azure Active Directory were announced on Sunday, and bring pre-integrated single sign-on for apps from Office 365 to,, and even Redmond-nemesis Google Apps."

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