The development of information and communication technologies has influenced the way people communicate. Until the advent of the Internet, the mass media were the main intermediary in the exchange of information. The Internet and the media convergence have greatly impacted the journalistic profession and changed the way media houses produce content. The main characteristics of online media are multimedia, immediacy, interactivity, global networking, hypertextuality and therefore they are very different from traditional media. In Croatia, the development of the Internet began in 1992, and the first modem connection took place between Zagreb and Vienna. In the next few years, the main media operating on the Internet were, among others, Hina, Hrvatski obzor, Glas Istre, Nacional, etc. After that, new online media developed rapidly, and today the list of the most popular Croatian media includes Večernji list, Jutarnji list, 24sata, Tportal and Index. The differences between online journalism and classic journalism are related to the characteristics of the Internet. Online journalism publishes news on social media, advertising spaces, newspapers, portals and blogs through online media, and this form of journalism has its advantages and disadvantages. The accessibility of the Internet and online media has led to the emergence of citizen journalism in which events from around the world are reported by citizens who do not have the necessary journalistic knowledge, skills and education. In the future, media houses are expected to change their goals, working methods, and organizational structure in an effort to successfully meet the needs and demands of a growing globally networked society.