CC-BY-SA

It is licensed CC-BY-SA and can also be downloaded if you are logged-in.

OSM 2008: A Year of Edits on Vimeo 2010

Have you seen the announcement about Wikipedia being dual licensed soon between GFDL and the CC-BY-SA license?

Open Data: license, rights, aggregation, clean interfaces? Egon Willighagen 2009

Summarizing, I think ChemSpider did a good thing, and that ChemSpider does not violate the OpenData idea, but instead, that the CC-BY-SA and the OKD violates John's requirements for integrating data resources apparently based on a two year legal study.

Does ChemSpider really violate Open Data with CC SA? Egon Willighagen 2008

Summarizing, I think ChemSpider did a good thing, and that ChemSpider does not violate the OpenData idea, but instead, that the CC-BY-SA and the OKD violates John's requirements for integrating data resources apparently based on a two year legal study.

Archive 2008-05-01 Egon Willighagen 2008

Should we worry about ChemSpider being 'only' CC-BY-SA?

Does ChemSpider really violate Open Data with CC SA? Egon Willighagen 2008

It just requires that when you would like to incorporate the ChemSpider data into a larger database, that database has to be CC-BY-SA too, or likely at least CC-SA.

Does ChemSpider really violate Open Data with CC SA? Egon Willighagen 2008

Chemspider's move to CC-BY-SA fits into this discussion nicely - it's a total violation of the open data protocol we laid out at SC, which says Don't

Archive 2008-05-01 Egon Willighagen 2008

A quick reread of these two links, tells me that it indeed is BSD-versus-GPL all over again; with the Science Commons license on the BSD side, and CC-BY-SA at the GPL side.

Archive 2008-05-01 Egon Willighagen 2008

I am happy about OpenBabel being GPL, and I am happy about ChemSpider being CC-BY-SA too.

Does ChemSpider really violate Open Data with CC SA? Egon Willighagen 2008

ChemSpider is afraid they are doing something bad because they release their data as CC-BY-SA.

Archive 2008-05-01 Egon Willighagen 2008