The Nature and NPG journals are indexed by the following abstracting and indexing services:

British Library

The national library of the United Kingdom includes 150 million manuscripts, maps, newspapers, magazines, prints and drawings, music scores, and patents. Online catalogues, information and exhibitions can be found on its website. The library operates the world's largest document delivery service, providing millions of items a year to national and international customers.

CABS (Current Awareness in Biological Science) 

Bibliographic database of biologial research. More than 1,700 journals are scanned by scientific editors to add about 15,000 entries to the database per month.

Chemical Abstracts Service

Pathways to published research in the world's journal and patent literature, covering virtually everything relevant to chemistry, a wealth of information in the life sciences, and a wide range of other scientific disciplines, all back to the beginning of the twentieth century.

Crossref

The official DOI (digital object identifier) link registration agency for scholarly and professional publications. Crossref operates a cross-publisher citation linking system that allows a researcher to click on a reference citation on one publisher’s platform and link directly to the cited content on another publisher’s platform, subject to the target publisher’s access control practices. This citation-linking network covers millions of articles and other content items from several hundred scholarly and professional publishers.

EBSCO Publishing

An integrated information service combining reference databases, subscription management, online journals, books and linking services. Widely used by libraries, schools, government institutions, medical institutions, corporations and others.

EMBASE

Comprehensive, timely access to the pharmacological biomedical literature. More than 18 million records from more than 7,000 journals, updated within 10 days of publication.

Google Scholar

Provides a simple way to search broadly for scholarly literature. Includes peer-reviewed papers, theses, books, abstracts and articles, from academic publishers, professsional societies, preprint repositories, universities and other scholarly organizations. Google Scholar sorts articles by weighing the full text of each article, the author, the publication in which the article appears, and how often the article has been cited in other scholarly literature, so that the most relevant results are returned on the first page.

Infotrieve

A global provider of content management technology and information services for the life sciences and other R&D-intensive industries that pioneer important scientific, technical and medical (STM) breakthroughs.

IngentaConnect

One of the most comprehensive collections of academic and professional research articles online: 20 million articles from 30,000 print and online articles. Offers online services including reference tools, additional online features, alerts and document delivery.

ISI Web of Knowledge

An integrated, versatile research platform, delivering easy access to high-quality, diversified scholarly information in the sciences, social sciences, and arts and humanities, as well as search and analysis tools that enhance this content. Users can search the right content and find relevant information they require — whether that information is found in international journals, open access resources, books, patents, proceedings or web sites. Also ISI Links: more than 5.4 million record links to full-text documents hosted by primary publishers and a growing list of key databases.

OCLC (Online Computer Library Center)

A non-profit, membership, computer library service and research organization dedicated to the public purposes of furthering access to the world's information and reducing information costs. More than 41,555 libraries in 112 countries and territories around the world use OCLC services to locate, acquire, catalogue, lend and preserve library materials.

Ovid

Customized clinical, research, and educational solutions that help individuals and organizations transform information into knowledge. Professionals, researchers, students and information managers in the scientific and healthcare communities use Ovid for the information they need for research, discovery and improved patient care.

PubMed

A service of the US National Library of Medicine that includes more than 16 million citations from Medline and other life-science journals for biomedical articles back to the 1950s. PubMed includes links to full-text articles and other related resources.

PubMed Central

PubMed Central (PMC) is a digital archive of life sciences journal literature that includes more than half a million articles. Authors of research articles in life-science disciplines published in NPG journals are encouraged to upload the "author" (accepted) version of the paper, six months after the online publication date, to PMC. For advice and guidance, see PMC's submission web pages.

Scopus

The largest abstract and citation database of research literature and quality web sources. Designed to find the information scientists need, fast. Quick, easy and comprehensive, it is updated daily, and provides a range of tools to help users find and refine results among millions of titles, abstracts, web pages, patents and references.

Ulrich's periodicals directory

A bibliographic database providing detailed, comprehensive and authoritative information on serials published throughout the world. It covers all subjects, and includes publications that are published regularly or irregularly and are circulated free of charge or by paid subscription. Fist published in 1932, it is used extensively by researchers, libraries, students, publishers, subscription agencies and businesses worldwide.