A portal is a specific type of Web site that gives people a starting point for the Internet. Portals can consist of a directory of other Web sites, a search engine, media coverage, articles, weather, phone and map services, stock quotes, web-based email, and even more services.
Portals usually provide content customized to your interests and the region you live in. In order to do this, the portal may ask you to register or create an account. There are many Web portals out there, such as the AT&T web portal.