Seyff, Norbert; Todoran, Irina; Caluser, Kevin; Singer, Leif; Glinz, Martin (2015). Using popular social network sites to support requirements elicitation, prioritization and negotiation. Journal of Internet Services and Applications, 6(7):online.
Singer, Leif; Seyff, Norbert; Fricker, Samuel (2011). Online social networks as a catalyst for software and IT innovation. In: Joint meeting of the European Software Engineering Conference and the ACM SIGSOFT Symposium on the Foundations of Software Engineering, Szeged, 5 September 2011 - 9 September 2011.