ABSTRACT
Web portals have been one of the first web services that have helped users to find the information they need in the ever expanding World Wide Web. A web portal is basically a website that groups links to information available on the Web. These links are selected based on certain criteria. Some web portals group links that pertain to a certain interest (e.g. tennis). Such a portal is sometimes classified as a vertical portal because it may include several categories like history of tennis, biographies of players, manufacturers of sport attributes. Horizontal web portals, on the other hand, group links to a specific category of resources. Dictionary portals are a good example of that.
