The aim of this essay is to examine how the Internet functions as a communication channel to Event Marketing. We have investigated what makes the Internet unique as a communication channel for events and how Internet has been used for event marketing. We have mapped fundamental theories within marketing, media, communications and human-computer interaction, which together describe event marketing. We have carried out case studies on two event-marketing projects where the Internet has played a major role. The first project was XCT which is a project developed by the company Eventum AB. The second project we used as a case study was TelecomCity-Live developed by the company Wildell Intergrerad Kommunikation. Information has mainly been gathered through qualitative interviews. In conclusion we found that the Internet is used as a complementary communication channel to Event Marketing. The Internet can in a unique way extend the event. Furthermore it is easier to communicate and interact with the target group. Internet is also a more cost effective communication channel than traditional communication channels such as mail outs. We also found that the capabilities of the Internet are not fully used since companies have not yet got the knowledge of its technical value and possibilities.