SharePoint 2010 provides a unified platform on which to build information-centric applications.
Sites - Provides a single infrastructure for all your business Web sites. Share documents with colleagues, manage projects with partners, and publish information to customers.
Communities - delivers great collaboration tools and a single platform to manage them. The User Profiles and social networking capability makes it easy for employees to work together and locate co-workers with specfic expertise.
Content - SharePoint 2010 provides a true best-of-breed Enterprise Content Management capability based on a mature document and records management implementation. Policy management makes it simple to automate the process of archiving and disposition of content.
Search - A unified interface provides users with the ability to search an entire SharePoint web site as well as back end line of business applications such as CRM, bespoke databases and email systems.
Insights - Insights gives everyone access to the information in databases, reports, and business applications PowerPivot functionality provides the ability to slice and dice millions of rows of data within Microsoft Excel 2010, in seconds, and publish directly to SharePoint.
Composites - Composites offers tools and components for creating do-it-yourself business solutions. Microsoft SharePoint Designer 2010 provides the functionality to connect to line of business applications and surface information in corporate intranets, extranets and external websites.