Redalyc is an electronic library project, working under Open Access supported by the University of State of Mexico. It has more than 400 IberoAmerican scientific journals with about 70,000 free, full-text articles in pdf format and universal access.
An online archive containing complete backruns of nearly 2000 important scholarly journals in 55 fields, primarily in the humanities, social sciences, economics, mathematics, and language and literature.