This master thesis is about the production, presentation and use of cartographic contents on the Internet. It addresses the challenges and peculiarities of Internet maps and pays special attention to the visual, cognitive and communicative conditions derived by the exchange of spatial information.At the beginning, the basic terms and underlying conditions related to Internet cartography will be discussed. Based on the findings, a comprehensive framework concept about the functional and formal design of Internet maps will be presented. It is based on an existing design concept, already known and used in the field of software development. This concept consists of four individual subdivisions (screen, information interface and interaction design) and will be adopted for the design of web maps.The implementation of the former developed design concept gets significantly influenced by the technological possibilities used on the Internet. The further course of the thesis therefore deals with the technological prerequisites and general conditions of the Internet.Finally, the last part of this thesis tries to get a deeper understanding of the effectiveness of the previously developed design concept. The idea is, that a well-developed web-map design depends on considerations about user-perception. The perception process will be discussed from the acquisition and processing of sensory stimuli, through the detection of a stimulus, till the use of information stored in the memory for the detection of already known patterns. The target is to draw conclusions about the most effective communication methods for space-related information on the Internet.