@article {3185, title = {Open educational resources and informational ecosystems: Edutags as a connector for open learning}, journal = {MedienP{\"a}dagogik. Zeitschrift f{\"u}r Theorie und Praxis der Medienbildung}, volume = {24}, year = {2014}, pages = {154{\textendash}173}, author = {Michael Kerres and Heinen, Richard}, editor = {Friesen, Norm and Hug, Theo and Meister, Dorothee} }