The project “Digital techniques for participatory city planning processes” increases the understanding of digital techniques for expanding the public involvement within city planning. Four different levels of citizen involvement could be applied within participatory processes. Information involves information from authorities to citizens. Consultation is associated with meetings where authorities listen to citizens but they do not have to take their opinions into consideration. Partnership means collaborative processes where citizens formulate strategies in cooperation with authorities. Mobilization denotes actions initiated by citizens within the civil society. The poster illustrates approaches, methods and products for E-participation, E-government, Web Collaboration and online forums. It also introduces tools for the collecting and exhibiting historical and more current data. The digital tools for participatory planning processes are structured in four groups: tool for (1) structuring ideas, (2) communication, (3) cooperation between the public sector and civil society and (4) collecting and exhibiting data.