The world keeps on changing under the influence of Internet, globalization and global cooperation. Concepts applied by companies based on principles of competition seem to be self-destructive. Companies and organizations that want to succeed in the future should apply principles of open cooperation, sharing and participation. They would apply the Wikinomics principles. Revolutionary new solution for effective cooperation is sharing and equal access to information. Public administration disposes of the data that should be undisclosed by transparent means. The presentation deals with possibilities of application of the Wikinomics principles in relation to a citizen, public administration and third sector, formed into a project of Open Public Administration www.opendata.sk.