Commentary on the Open Content Movement
The Economics of Open Source Hijacking and Declining Quality of Digital
Information Resources: A Case for Copyleft, by Andrea Ciffolilli, Department of Economics, Università Politecnica delle Marche, Ancona, Italy.
"A copyleft, rather then a simple attribution licence...does not forbid commercial exploitation, but only shields the coherence of the collectively constructed public good and, for instance in the examined case, avoids the undesirable event in which the exploited genuine information is subtracted, once and for all, from the public domain and mixed together with pay-per-play catalogues." [Link via Marcus P. Zillman]
See also this link to the Free/Open Source Community for additional papers on this topic.
