Think of it as your familiar Office, only better

Office 365 is the same Office you already know and use every day. And then some. Because Office 365 is powered by the cloud, you can get to your applications and files from virtually anywhere—PC, Mac, and select mobile devices—and they’re always up to date. Same goes for updates to features—you get them automatically.

Business-class email and calendaring put you in sync

Avoid communication glitches. Business-class email and shared calendars that you can get to from virtually anywhere means people stay in sync, and on schedule.

Create docs from any browser

Office Web Apps are touch-friendly applications that you can use to create, edit, and share your Office files from any browser. You can even share and work on docs at the same time as others and avoid versioning hassles later.

Install a Replica Active Directory Domain Controller in Windows Azure Virtual Networks
Instantly provision Windows and Linux VMs, apps, and infrastructure using Microsoft-managed data centers in 13 regions around the world. With Windows Azure, you can spin up new Windows Server and Linux virtual machines in minutes and adjust your usage as your needs change. With Microsoft’s pay-as-you-go approach, you only pay for what you use and there are never any penalties for changing your virtual machine configurations.

Amazon Web Services, EC2 and S3

Amazon EC2’s simple web service interface allows you to obtain and configure capacity with minimal friction. It provides you with complete control of your computing resources and lets you run on Amazon’s proven computing environment. Amazon EC2 reduces the time required to obtain and boot new server instances to minutes, allowing you to quickly scale capacity, both up and down, as your computing requirements change. Amazon EC2 changes the economics of computing by allowing you to pay only for capacity that you actually use. Amazon EC2 provides developers the tools to build failure resilient applications and isolate themselves from common failure scenarios.