@inbook {862, title = {Web 2.0 - Vom Ich zum Wir}, booktitle = {fraMediale - Digitale Medien in Bildungseinrichtungen}, year = {2010}, publisher = {kopaed}, organization = {kopaed}, address = {Frankfurt}, isbn = {978-3-86736-107-1}, author = {Schrader, Ulrich}, editor = {Knaus, Thomas and Engel, Olga} }