Offices Professional Plus, SharePoint Online, Exchange Online and Lync Online.
SharePoint Online enables the following features:
It offers 'my sites' that enable managing and sharing documents.
Allows accessibility to files offline.
Allows permissions to protect sensitive documents.
Enables contents search on multiple sites.
Enables Sharing of documents securely with intranet and extranet portals. For further details http://www.sharepoint.desss.com/sharepoint-online-office-365-consulting-services-solutions-consultant-houston-austin-dallas-san-antonio.html