The Internet Archive is piloting an ambitious project specifically to archive and make available academic journal articles. See for example:
They say,
This fulltext search index includes over 25 million research articles
and other scholarly documents preserved in the Internet Archive. The
collection spans from digitized copies of eighteenth century journals
though the latest Open Access conference proceedings and pre-prints
crawled from the World Wide Web.
--
Professor
Dominik Wujastyk,
Singhmar Chair in Classical Indian Society and Polity
,
University of Alberta, Canada
.