%0 Journal Article %T Theoretical Foundations of the Web: Cognition, Communication, and Co-Operation. Towards an Understanding of Web 1.0, 2.0, 3.0 %A Christian Fuchs %A Wolfgang Hofkirchner %A Matthias Schafranek %A Celina Raffl %A Marisol Sandoval %A Robert Bichler %J Future Internet %D 2010 %I MDPI AG %R 10.3390/fi2010041 %X Currently, there is much talk of Web 2.0 and Social Software. A common understanding of these notions is not yet in existence. The question of what makes Social Software social has thus far also remained unacknowledged. In this paper we provide a theoretical understanding of these notions by outlining a model of the Web as a techno-social system that enhances human cognition towards communication and co-operation. According to this understanding, we identify three qualities of the Web, namely Web 1.0 as a Web of cognition, Web 2.0 as a Web of human communication, and Web 3.0 as a Web of co-operation. We use the terms Web 1.0, Web 2.0, Web 3.0 not in a technical sense, but for describing and characterizing the social dynamics and information processes that are part of the Internet. %K World Wide Web %K social theory %K cognition %K communication %K co-operation %K Social Software %K Web 1.0 %K Web 2.0 %K Web 3.0 %U http://www.mdpi.com/1999-5903/2/1/41