Collected here are a variety of search engines for searching the Internet. Basic search engines
try to search all the web, and they frequently give search results which are unsorted or unfiltered, resulting in
inconsequential hits, such as dead links. Metasearchers run a simultaneous search using
several search engines and rank the results. Specialized
search engines search a specific part of the internet. Sometimes, these are search engines that are part of a basic
To see useful links we've selected for learning about NASA or other topics, see our Browse topics and our bibliographies. If you are having
trouble finding a NASA website, you can request assistance.
Registered Library Patrons can also request
assistance in any work-related web research and can request training in
advanced internet searching techniques.
- ABYZ News Links - Catalog of links to newspapers, news media, and news
sources arranged by country.
- The CyberCemetery - Creates permanent links to websites and
publications of defunct U.S. government agencies and commissions. A partnership between GPO and the University of North
- Electronic Preprints - Catalog of web sites offering
electronic preprints of journal articles. Compiled by Goddard Space Flight Center Library.
- E-print Network - "Searchable gateway that provides access to preprint
servers from around the world...Links to 18,000 servers in 35 countries housing 650,000 documents."
- FindHow - A specialized site that links to different sites that answer
questions ranging from the mundane (how do I inspect my car's transmission oil pan) to the esoteric (how can I tell that
this stone is a meteorite).
- Google Scholar - Specialized search engine that searches for scholarly
literature, including peer-reviewed papers, theses, books, preprints, abstracts and technical reports from all broad
areas of research. Use Google Scholar to find articles from a wide variety of academic publishers, professional
societies, preprint repositories and universities, as well as scholarly articles available across the web. Google
Scholar also automatically analyzes and extracts citations and presents them as separate results, even if the documents
they refer to are not online. An Advanced Search option is also available.
- Infomine: Scholarly Internet Resources Collections - "INFOMINE is a virtual
library of Internet resources relevent to faculty, students and research staff at the university level. It contains
useful Internet resources such as databases, electronic journals, electronic books, bulletin boards, mailing lists,
online library card catalogs, articles, directories of researchers and many other types of information."
- Internet Archive - Also called the Wayback Machine, it is a specialized
search engine that searches an archive of old web pages and out of copyright materials. The Archive also hosts NASA's
collection of online images and other mulitmedia at NASA Images.
- Internet Public Library - Catalog of reputable sources selected by the University
of Michigan School of Information.
- Science.gov - "Science.gov searches over 50 databases and over 2100 selected
websites from 13 federal agencies, offering 200 million pages of authoritative U.S. government science information
including research and development results."
- Scirus - Specialized search engine that covers only scientific web pages and
- Search NASA
- USA.gov - Specialized search engine that searches only United States government
sites. It is the official gateway to all U.S. government information.
- The WWW Virtual Library - Link catalog of reference sites worldwide selected by
volunteer subject experts. This is the oldest catalog of the web and was started by Tim Berners-Lee, the creater of