Hey All I have be trying to convince the World Health Organization to go to a CC BY SA license for a few years now. Najeeb Al-Shorbaji Director of Knowledge, Ethics and Research at WHO states: https://dgroups.org/hifa2015/discussions/35152a41 We would welcome sharing with us some evidence-based research on how licensing works under the Creative Commons attribution licence has made an impact in the area of scientific, technical and medical publishing. If people know of research articles on this topic please send them my way. Best -- James Heilman MD, CCFP-EM, Wikipedian The Wikipedia Open Textbook of Medicine www.opentextbookofmedicine.com