Lengamer.org is a site dedicated to the protection of native languages of the Western Hemisphere. The site is in Spanish with some content apparently in Portuguese. The native languages represented have varying degrees of representation. Of interest to Quechua
students is that there is material in and about the Quechua of Salasaca, Cuzco and Lambayeque. Some of these materials should be accessible to any one that can read Spanish. There are also some phonological descriptions and other more academic papers available.