What is SharePoint?
With Office 365, SharePoint offers enhanced security technologies, is easy to manage, and can be accessed from almost anywhere.
SharePoint Online delivers the powerful features of SharePoint without the associated overhead of managing the infrastructure on your own. Flexible management options ensure that you still retain the control you need to meet the compliance requirements of your organization. You can purchase SharePoint in the cloud as a standalone offering or as part of an Office 365 suite where you could also get access to Exchange, Lync, the Office clients and web apps.