The results of the web experiment “Help, I need somebody to tag!” are published:

Kowatsch, T., Pre-defined Terms in Collaborative Indexing Systems: Why are they used and which impact do they have on the community’s vocabulary? VDM Verlag, Saarbrücken, 2008

One part of the results is also published and available for free: Kowatsch, T. & Maass, W., The Impact of Pre-defined Terms on the Vocabulary of Collaborative Indexing Systems, Proceedings of the 16th European Conference on Information Systems (ECIS), Galway, Ireland, 2008. (http://is2.lse.ac.uk/asp/aspecis/Default.htm)

Best regards,Tobias Kowatsch

PS: Amazon-Link: http://www.amazon.com/Pre-defined-Terms-Collaborative-Indexing-Systems/dp/3639073169/ref=sr_1_1?ie=UTF8&s=books&qid=1221236600&sr=8-1