You are correct. This portion appears to be in public domain (though not publicly available). Non-profit or not, the fact remains that most of these documents r

You are correct. This portion appears to be in public domain (though not publicly available). Non-profit or not, the fact remains that most of these documents remain behind pay-walls while still being considered to be in public domain. You have a valid point though. The access to these documents seem to be governed by agreements between various publishers with aim to share the published content among various institutions (http://en.wikipedia.org/wiki/JSTOR http://en.wikipedia.org/wiki/JSTOR). So there is no point blaming JSTOR for the lack of access.