The Windows Intune cloud service provides cloud based PC management including anti-virus, patch updating and more. It helps you centrally manage and secure PCs through a simple Web-based console; whether your IT staff or end users are in the main office, in a branch office, or on the road.

Windows Intune Product Guide provides an introduction to Windows Intune, outlines the benefits of using the cloud-based service, and describes the wide range of Windows Intune functionality from software distribution and update deployment to malware protection and remote user assistance.
Download: Microsoft.
This PDF guide is a 67 MB download and make for rather exhaustive reading!
Go here if you are looking for some good Windows Intune Tutorials and a Getting Started Guide and here for Windows Intune Tips and Tricks.
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