This is an old revision of this page, as edited by Psychonaut(talk | contribs) at 11:15, 21 March 2011("Commercial" is being confused with "proprietary", and "non-commercial" with "freely available"; these four descriptors have considerable overlap). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.Revision as of 11:15, 21 March 2011 by Psychonaut(talk | contribs)("Commercial" is being confused with "proprietary", and "non-commercial" with "freely available"; these four descriptors have considerable overlap)
