"SharePoint 2007 (MOSS) is described by Microsoft as an enterprise content management system.
However, under the covers it sports web content management, document
management, search, collaboration and business intelligence, among
other talents.

If you ask the experts, the primary target market for SharePoint is small and medium businesses (SMBs). If you ask SMBs
you might get a different answer though — as the licensing model alone
is enough to send most of them running, with tails tucked tightly
between their legs."

Complete Story at CMS Wire