http://oaister.umdl.umich.edu/o/oaister/

<font face="arial,sans-serif"><font size="-1">Gives access to a large number of eprints archives and electronic resources and through the OAI harvesting protocol reveals digital resources previously &quot;hidden&quot; from users behind web scripts.</font></font>.. [Read more]

http://arxiv.org/

<font face="arial,sans-serif"><font size="-1">An Open Archives Initiative (OAI) compliant archive of electronic preprints in physics, mathematics, computer science, and non-linear sciences. Created by Paul Ginsparg in 1991, it is one of the oldest archives of free online scholarship.</font></font>.. [Read more]

http://highwire.stanford.edu/

<font face="arial,sans-serif"><font size="-1">Division of the Stanford University Libraries producing online versions of peer-reviewed journals and scholarly content.</font></font>.. [Read more]