In this website you can find information about folksonomies, their strenghts and weaknesses, and Sem4Tags an approach to improve multilingual folksonomies using semantic web techniques. In addition, there is information about the developed demo software to associate tags with semantic entities.
J. Lorince, K. Joseph, und P. Todd. Social Computing, Behavioral-Cultural Modeling, and Prediction, Volume 9021 von Lecture Notes in Computer Science, Springer International Publishing, (2015)
R. Jäschke, F. Eisterlehner, A. Hotho, und G. Stumme. RecSys '09: Proceedings of the 2009 ACM Conference on Recommender Systems, New York, NY, USA, ACM, (2009)(to appear).