- published draft versions are often just called draft for legal reasons and content-wise identical to the final versions - http://citeseerx.ist.psu.edu/ http:

- published draft versions are often just called draft for legal reasons and content-wise identical to the final versions - http://citeseerx.ist.psu.edu/ http://citeseerx.ist.psu.edu/ has a public "cached" version of many papers that aren't publicly available on other sites. Also, if there is some paper you just can't find, you could try posting its name (or a link to the paywalled site) here. There lots of academic people on HN. Someone here may be able to help you out. I think all research should be made freely available. The current situation is just sad.