From Wikigogy

Share alike floats all boats, non-commercial punches holes in them

Share alike floats all boats by ensuring anyone can take what works from Wikigogy and incorporate it into his own materials, as long as he shares those improvements with others, too. Non-commercial punches holes in those boats by not allowing them to prosper. Some OER sites defeat their mission by using non-commercial license restrictions. Wikigogy avoids that by using CC-BY-SA and not CC-BY-NC-SA. --Roger :-) ^beep 17:14, 26 March 2007 (CDT)