Web portals are basically divided into horizontal and vertical. The horizontal portal presents a full range of online content, provides visitors with information from all areas and contains various services. Vertical portals provide information from a specific area.
The classic horizontal portal in Serbia is nadlanu.com, it contains information from the field of film, music, sports, theater, weather forecast, online shopping ... One of the vertical portals is sportskimagazin.com which provides information from sports, further sorted by sections.

Portals are divided into:
• Information portals
• Search portals
• Personal
• Regional
• Government
• Corporate
Information portals provide a large number of news, reports, interviews, announcements.
Search portals, so-called search engines, have the primary function of searching websites. Example: Google.com of course
Personal portals as a basic function have a total arrangement of the page layout for each of the visitors. News sources and services are available to users, and users themselves create the look of the entire portal area. Example: Netvibes.com
According to their content, regional portals are focused on a specific geographical area. In most cases, they contain street maps, weather forecast, service information. Example: Webplace.it
Government portals have as their primary function communication between the population of a state and the government. They provide basic services and information on government services, business, laws. Example: Usa.gov
Communication of employees within companies is done through corporate portals. Communication takes place in the relations management - employees, and employees - employees. Online groups can be defined by sectors, information relevant to the company's business can be displayed, resources can be shared.

Portals and Joomla CMS

Portals are realized with the help of content management systems. Of the free online programs for the realization of the portal, Joomla and Drupal are of exceptional quality and are primarily used. The functionality they provide is just meant for portals, and with certain additions can be a great portal platform.
A portal cannot do without a content management system, while a content management system does not have to be modified into a portal only. Simple systems can be modified into a personal presentation, a smaller info site, even larger systems with the use of only a few components can be modified for, say, a simple online photo gallery. Portals require regular updates, and this can only be achieved with the help of a content management system.