What is SharePoint?

Microsoft Office SharePoint Server is an integrated suite of server capabilities that can help improve organizational effectiveness by providing comprehensive content management and enterprise search, accelerating shared business processes, and facilitating information-sharing across boundaries for better business insight. 
You can quickly create SharePoint sites that support specific content publishing, content management, records management, or Business Intelligence needs. You can also conduct effective searches for people, documents, and data; participate in forms-driven business processes; and access and analyze large amounts of business data.
 
Collaboration - Allow teams to work together effectively, collaborate on and publish documents, maintain task lists, implement workflows, and share information through the use of wikis and blogs.
Portals - Create a personal MySite portal to share information with others and personalize the user experience and content of an enterprise Web site based on the user’s profile.
Enterprise Search - Quickly and easily find people, expertise, and content in business applications.
Enterprise Content Management - Create and manage documents, records, and Web content.
Business Process and Forms - Create workflows and electronic forms to automate and streamline your business processes.
Business Inteliigence - Allow information workers to easily access critical business information, analyze and view data, and publish reports to make better-informed decisions.