Features:

Scalable Enterprise Search:

Search Engine
Retrieve text using state of the art probabilistic ranking. The search engine also features "best bets," property searches, and auto-categorization of crawled content.
Data Access and Indexing
Crawl and search file and Web servers, Microsoft Exchange Server Public Folders, Lotus Notes servers, and remote servers for SharePoint Portal Server.
Subscriptions
Subscribe to a document, folder, category, or search query so you are notified when changes are made, in the portal and optionally, by e-mail.
Categories
Classify content under a set of customer-defined categories. This allows easy navigation to information.
Low-Latency Indexing
Support manual and scheduled crawls, as well as adaptive and incremental crawling, to ensure that your search results contain the most recent information.
Search Extensibility
Search protocol handler interfaces enable connection to custom data sources. Support custom content types through the IFilter interface.

Integrated Document Management:

Integration
A complete set of document management functionality is accessible directly from the Microsoft Office 2000 toolbar and Microsoft Windows® Explorer. This helps users manage documents with familiar tools.
Check-in and Check-out
Enables optional enhanced Web folders so that documents can be reserved by individual users for updating.
Document Versioning
Document changes, including metadata such as keywords, are tracked and assigned different version numbers for auditing and rollback.
Document Profiling
This captures optional and required metadata about customer-defined document types.
Document Collaboration
Use the Discussions feature in Office and Hypertext Markup Language (HTML) documents for inline, content review.
Security
Using roles built on Microsoft Windows NT® security, SharePoint Portal Server ensures that only users with appropriate access can see a given document.
Lifecycle Management
Create private drafts, review and revise, then publish, with optional approval routing.

Customized Portal Solution:

Digital Dashboard–based Portal
Get flexible, Web Part–based portals using digital dashboard layouts and content interfaces, using third party or your own Web Parts.
Shareable Personal Dashboards
Easily create customized dashboard sites, and share them with other users.
Web Storage System
Built-in services for building Web-based collaborative applications.
Standard Tools
Develop solutions using familiar tools like Microsoft Visual Studio®.
Standard Interfaces
Utilize common interfaces like Microsoft ActiveX® Data Objects (ADO), Extensible Markup Language (XML) and Hypertext Transfer Protocol (HTTP), and Web Distributed Authoring and Versioning (WebDAV).