Windows SharePoint Services provides a powerful set of tools for information sharing and document collaboration.
SharePoint Web sites provide places to capture and share ideas, information, knowledge, communication, and documents.
You can access content stored within a SharePoint site from both a Web browser and through desktop applications, such as Microsoft Office.
There are varying levels of integration between different versions of Microsoft Office and Windows SharePoint Services, with Microsoft Office 2007 providing the closest integration.
Access to a SharePoint site is controlled through a role-based system predicated on permission levels. The five default permission levels are Read, Contribute, Design, Full Control, and Limited.
SharePoint Server 2007 is built upon Windows SharePoint Services. In addition to Windows SharePoint Services functionality, SharePoint Server 2007 provides significant additional enterprise-level capabilities including collaboration, portal, search, enterprise content management, business process and forms, and business intelligence.
Windows SharePoint Services, SharePoint Server 2007, and SharePoint Designer 2007 are known collectively as SharePoint Products and Technologies.