Virtual libraries

Babelot
This is a search engine that allows you to scour all major virtual libraries.

TextLet
This is also not a virtual library but a search engine which trawls through all major virtual libraries.

Biblioteca Virtual Miguel de Cervantes
The 'Biblioteca de las culturas hispánicas' is a virtual library dedicated to the study of Spanish literature, with key texts online.

Catalonian Manuscripts
These are digitized Catalonian manuscripts from the collection of The Bancroft Library (University of California, Berkeley). 

Electronic Text Collections in Western European Literature
This page lists Internet sources for literary texts in the western European languages other than English.

Golden Age Spanish Sonnets
This is an ongoing project whose primary purpose is to provide online verse translations of Golden Age Spanish sonnets to English-speaking readers.

Red de Bibliotecas Virtuales de Ciencias Sociales de América Latina y el Caribe
This site, run by CLACSO, offers open access information to a selection of books, journals, and bibliographic resources in Spanish, Portuguese and English. 

Labyrinth Library: Iberian texts
A collection of Medieval Iberian texts, included in the Virtual Library for Medieval Studies.

PARES
Launched by the Spanish Ministry of Culture, this Internet-based portal permits simple and complex keyword searching of archives in Spain, and in many cases provides digital document retrieval. It links to 19 million images and ca 1.7 million documents and manuscripts.

Biblioteca Digital Hispánica - Biblioteca Nacional
Spain's Biblioteca Nacional's virtual library contains digital versions of some of the library's holdings. Researchers might find its Hemeroteca Digital, which allows access to hundreds of historical Spanish newspapers and periodicals, particularly useful.

Hemeroteca Nacional Digital de México
This online resource allows access to digital versions of national and local dailies and other periodicals.