Internet Search Engines
This provides a collection of links to Internet search engines, including general search engines, meta search engines, and specialty search engines. This collection is small, but contains essential Internet search engines that help users explore the deep web and find information that they are looking for.
General Search Engines
Google provides many useful additional services including e-mail service, video sharing through YouTube, web-
based documents by Google Docs, and so on as well as powerful search engines for web, images, news, books,
blogs, etc. It uses a ranking system, called PageRank, as an algorithm to rank webpages. and Google search is
employed by AOL.
Yahoo! employs AllTheWeb, Altavista, and OverTure as their web search engine. Its first offering was human-
edited directory service, but in late 2002 Yahoo! began to bolster its search services by acquiring other search
engines, and changed to crawler-based listings. In addition, Yahoo! provides a web portal service, Yahoo! Mail,
Yahoo! Messenger, etc.
Bing(formerly Live Search) is Microsoft's Internet search engine providing search services on web, news, images, and xRank. It has several features: daily changing of background image, image search with continuous scrolling images results page that has adjustable settings for size, layout, color and style, and xRank about celebrity rankings.
Ask.com is a search engine, which was originally known as Ask Jeeves. The original idea behind Ask Jeeves was
to allow users to get answers to questions posed in everyday, natural language. It supports a variety of user queries
in plain English (natural language), as well as traditional keyword searching. Teoma was acquired by Ask Jeeves
on September 11, 2001.
Meta Search Engines
Twingine, Twin Engine, is a search engine that enables users to get the search results for a query from both Yahoo!
and Google in one page, side by side.
Zuula is a meta search engine that provides results from multiple search tools in configurable separate tabs.
It allows users to search the Web, images, news, blogs, and jobs.
Specialty Search Engines
Omgili is a search engine focusing on "subjective information" such as online discussions, opinions, debates, personal experiences and answers.
Technorati is an Internet search engine for searching blogs: An intelligent, intuitive and inspiring way to read entries
from some of the millions of blogs that dot the internet.
IceRocket is an Internet search engine specialized in searching blogs.
Blinkx is an Internet search engine for video and audio content, based in San Francisco, that allows searching
and classification of audio files, video clips and streaming media.
PubMed is a kind of search engine, which is a service of the U.S. National Library of Medicine that includes over 18
million citations from MEDLINE and other life science journals for biomedical articles back to the 1950s.
Google Patents provides a search service for all patents available from the United States Patent and Trademark
Office(USPTO), which database contains over 7 million patents from patents issued in the 1790s to those recently
issued. And also it enables users to download a patent in PDF file format.
E-journals search engine provides a search service for the content of science, engineering and technology e-journals covering academic journals, trade publications, newsletters, and society journals.
ALLDATASHEET is a datasheet search site for electronic components and semiconductors.
Monster is an Internet search engine for jobs from around the world.