SharePoint Server delivers Portal features in the following areas

Personalization The ability to deliver enterprise content to users or groups that can be customized to how they need the information .

SharePoint includes a feature called My Site that is a user's own Web Site. The user can customise its pages by selecting content relevant to their job, position, skills and interests.

Also included is a feature call  User Profiles which is a data store for information about a user such as their department, divisions, memberships in Exchage Server distribution lists and SharePoint Services sites and other customisable information.

Audience targeting allows administrators to target pages, web parts and even sites to specific groups of users. These groups can be

Navigation The capability of the portal to organise and present navigation links so the user can navigate a complex hierarchy with ease.

Site-wide global links can be added by administrators that appear as tabs across the top of the page. Also at the top of every page is a My Links menu that contains links the user can modifiy and maintain, these enable rapid access to the sites that are most importtant to the user.

The navigation controls can be easily extended by developers and the sites displayed in the them are security trimmed so if the user has no access to them they will not be displayed.

Web Parts The ability to deliver information in mini-applications that can be customized by users or power users for example by adding them to a web page. Web Parts can deliver context sensitive information tailored to the user or groups.

Built-in Web Parts include parts to display other web pages, RSS Feeds, key performance indicators, custom data from the Business Data Catalog, Exchange inboxes and calendars and more.