Microsoft Office Sharepoint Server
Microsoft SharePoint, also known as Microsoft SharePoint Products and Technologies, is a collection of products and software elements that includes, amongst a growing selection of components, Internet Explorer based collaboration functions, process management modules, search modules and a document-management platform. SharePoint can be used to host web sites that access shared workspaces, information stores and documents, as well as host defined applications such as wikis and blogs. All users can manipulate proprietary controls called "web parts" or interact with pieces of content such as lists and document libraries.
Following are the Microsoft Office Sharepoint Server 2007 key features (107 features added in MOSS)
Also, please look into our Sharepoint blog
