Online Services

Open Library is an open, editable library catalog, building towards a web page for every book ever published. Read, borrow, and discover more than 3M books for free.

One of the largest and most authoritative collections of online journals, books, and research resources, covering life, health, social, and physical sciences.

Wolfram Library Archive has thousands of downloadable resources for Mathematica and other Wolfram products, collected over the full history of Wolfram Research

The World Digital Library provides free access to manuscripts, rare books, maps, photographs, and other important cultural documents from all countries and cultures, in Arabic, Chinese, English, French, Portuguese, Russian and Spanish.

Academia.edu is a place to share and follow research.

AccessMedicina from McGraw Hill Medical. Continually updated content from leading medical books in Spanish. Multimedia. Q&A. Flashcards, and more

Communications of the ACM is the leading publication for the computing and information technology fields. Read by computing's leading professionals worldwide, Communications is recognized as the most trusted and knowledgeable source of industry information for today's computing professional. Each month Communications brings its readership of over 90,000 ACM members in-depth coverage of emerging areas of computer science, new trends in information technology, and practical applications. The prestige and unmatched reputation of Communications is built upon a 50-plus-year commitment to high quality editorial content and a steadfast dedication to advancing the arts, sciences, and applications of information technology.

ACM Digital Library Home page

Repositorio Educativo de la Comunidad Educativa Española

More than 200 mio. scientfic documents from more than 8000 content providers. BASE is one of the world's most voluminous search engines for academic web resources.

ChemSpider is a free chemical structure database providing fast access to over 100 million structures, properties and associated information.

Scientific Literature Digital Library incorporating autonomous citation indexing, awareness and tracking, citation context, related document retrieval, similar document identification, citation graph analysis, and query-sensitive document summaries. Advantages in terms of availability, coverage, timeliness, and efficiency. Isaac Councill and C. Lee Giles.

The dblp computer science bibliography is the online reference for open bibliographic information on major computer science journals and proceedings.

Portal Dialnet

ERIC is an online library of education research and information, sponsored by the Institute of Education Sciences (IES) of the U.S. Department of Education.

Discover inspiring cultural heritage from European museums, galleries, libraries and archives

RECOLECTA o Recolector de Ciencia Abierta es una plataforma que agrupa a todos los repositorios científicos nacionales.

Google Scholar provides a simple way to broadly search for scholarly literature. Search across a wide variety of disciplines and sources: articles, theses, books, abstracts and court opinions.

Infoscience - Infoscience

The home of scholarly research, Ingenta Connect is your gateway to the world's most comprehensive collection of academic & professional digital content.

European Open Science Infrastructure, for open scholarly and scientific communication