Internet - portal-- a special kind of site that provides the user with various interactive services , operating within a single web site , such as mail, search , weather, news , forums, discussions , polls, and more.
Taken to distinguish between different types of diversion portals : horizontal and vertical. Called horizontal portals covering many different topics . Often these portals appear around the search engines (such as Yandex and Mail.ru). The main way to monetize such portals - attracting a large number of users and redirecting on various topics and services , each of which may be paid or serve as an advertising platform .
Called vertical portals specialized for some specific topics . Portals such as the construction or themes automotive portals . All portals are subdivided as on international and regional . Furthermore portals can be public or corporate. In this enterprise portals focus on different specific type of users ( employees, partners ) . While these portals often have external interface for public use , it is different from the opportunities provided by the internal .