SharePoint is an enterprise information portal developed by Microsoft that can be configured to run Intranets, Extranets and Internet sites. SharePoint makes it easy to connect employees, teams, customers, suppliers and stakeholders together and  facilitates document related work.

SharePoint solves your main problems:

When companies grow, so does the number of their documents. It quickly becomes difficult to keep track of the growing stack of documents. SharePoint solves this by giving you the ability to store and find your documents on a central site. Documents can also be found by searching  across all the data present on  your enterprise portal.

To share documents via email is a cumbersome process. SharePoint solves this by allowing documents to be stored in one place and give all members of the team easy access.

SharePoint allows users, regardless of their whereabouts, to instantaneously connect with each other, cooperate and work together. This is especially beneficial considering the fact that nowadays, working can be done from a wide variety of locations.

Microsoft Office SharePoint Server 2007

Microsoft Office SharePoint Server is a collaboration portal, built on top of WSS 3.0. Unlike WSS, MOSS 2007 is not free and requires an additional license. MOSS 2007 comes in two versions - Standard and Enterprise. The major components of MOSS 2007 are collaboration portals, enterprise search, enterprise content management, business processes and forms, as well as business intelligence.

The previous versions of SharePoint Server are called SharePoint Portal Server 2003 and before that SharePoint Portal Server 2001. To see the new functionalities  in MOSS 2007, you can visit Microsoft Office SharePoint Server 2007 Demo on Microsoft’s website

Windows SharePoint Services 3.0

Windows SharePoint Services is the platform on which all SharePoint products and technologies are built. WSS 3.0 is perfect for small teams, projects and organizations. WSS 3.0s functionalities for project collaboration, document workspaces, and discussion forums  allow  employees and teams to collaborate and share information online.
The previous version of WSS 3.0 was called Windows SharePoint Services 2.0 and before, SharePoint Team Services. A major new functionality in WSS 3.0 is characterized by particularly integrated workflows, RSS feeds, blogs and wiki. To see WSS 3.0’s new functionalities, you can visit the Microsoft Windows SharePoint Services 3.0 Demo.