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Enlaces a sitios

Adobe"s PDF Search Engine

Adobe has provided a search service which locates .pdf files on the internet. An excellent way to search for articles. BEWARE, not all hits are acceptable peer reviewed articles.

All Academic

This searchable index lists articles from over 200 refereed journals and has a browseable list of 350 academic journals listed by discipline or alphabetically.

Argonne National Laboratory Educational Programs

Archive and educational outreach resources from Argonne National Laboratory.

Ask Jeeves

A Farewell to Ask.com | 30 Years of Curiosity

BASE - Bielefeld Academic Search Engine

One of the world"s most voluminous search engines especially for academic web resources and repositories.

Ciencia1.com | Explorando las fronteras de la ciencia y la tecnología

Portal dedicado a la divulgación de ciencia y tecnología, con enfoque en noticias relevantes sobre tecnología, historia, medicina y eventos naturales

DigiBib - Die Digitale Bibliothek

A meta-search service across numerous library catalogs and databases, provided by hbz (Hochschulbibliothekszentrum des Landes NRW).

Findinfo.com

AI Search Engine

Free AI Chat — Chat with ChatGPT, Claude, Gemini & More | HotBot AI

HotBot is AI made simple. We made searching the web better in 1996, and now we're making AI easier in 2026. Just type in your question and receive your answer, all powered by ChatGPT. HotBot is totally free to use and no sign-up required.

Google

Motor de Búsqueda.

Guia Net

Guianet - Portal de Negócios

LookSmart

LookSmart - Web Search

Lycos.com

Lycos Search Engine

Mamma.com Search - Trust Mamma to provide the best search results

Our content and editorial team are dedicated to providing current, trending, and emerging news on a range of topics, including software applications, air travel, television, movies, animation and anime, education, books and literature, and video games.

Meta Crawler

Meta Crawler

MetaGer: Privacy Protected Search & Find

Search safely while having your privacy respected. The digital knowledge of the world must be freely accessible without paternalism and abide by states or corporations.

MetaGer: Privacy Protected Search & Find

Search safely while having your privacy respected. The digital knowledge of the world must be freely accessible without paternalism and abide by states or corporations.

Meta-Search Engines-The Library-University of California, Berkeley

Table of features of Meta-Search Engines. What they"re good for and some warnings about them.

Netguide | Profiter d'Internet

Pour un temps de qualité sur Internet. Suivez votre actualité. Explorer Internet et vos sites favoris.

Northern Light

A more academically minded search tool to index and classify all human knowledge to a unified consistent standard and make it available to everyone in the world in a single integrated search.

SciCentral

Links to sites in the fields of science, medicine, and engineering, and to current scientific news articles

SciNet

Sci-Net provides the best approach for sharing and requesting research papers

SciSeek

Agriculture, biology, chemistry, and physics resources.

Search Engine Watch

tracking search engine news, important changes, and providing quality information about these important tools.

Searchedu.com

This site was set up by Maxbot.com to search sites with the .edu suffix. This includes all educational institutions in the States.

SearchTools.com

how to choose and implement a search engine on a web site. Also has information on robots, indexers, search servers, and related topics.

Start Page

Startpage is a private search engine that delivers best-in-class search results without tracking, profiling, or saving your personal information or search history. It allows you to search the web securely by acting as a buffer between you and the internet

The Smithsonian Institution Archives" Collections

From its inception in 1846 to the present, the records of the history of the Institution—its people, its programs, its research, and its stories—have been gathered, organized, and disseminated so that everyone can learn about the Smithsonian.

The Swiss Search Engine - search.ch

The Swiss search engine: Phone Directory, Weather, Map, Route, Timetable, TV Guide, Cinema, Snow report, Web Search

Top Internet Searching Resources Reviewed

Top Internet Searching Resources Reviewed

Using Internet search engines to estimate word frequency | Behavior Research Methods | Springer Nature Link

The present research investigated Internet search engines as arapid, cost-effective alternative for estimating word frequencies. Frequency estimates for 38

WebCrawler

WebCrawler

Yep.com

Yep Search Engine




 


 


 






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