This list is really obsolete.
Leading search engines, with English version, as of July 17, 2017:
Bing – A renamed version of MSN LiveSearch. Used by the less tech-savvy to find Google. (This is a bit sarcastic, but it's probably true.)
DuckDuckGo – A search engine focused on confidentiality. Mix their own results with results from other sources.
Google – A project of two Stanford students. Uses links to help determine relevancy, but has the ability to evaluate links to eliminate spammers. Here is their article: http://infolab.stanford.edu/~backrub/google.html
Yandex – A Russian search engine. Not very popular outside of Russia, but there is an English version, so I listed it here.
Gigablast – A small search engine launched by a former Infoseek employee because … because he liked working on search engines. Always exists in some way. Good Boolean support.
Exalead – A technical demo for the French information retrieval company. Good advanced search features.
Yippy – Launched as Clusty, a clustering metasearch engine owned by Vivisimo. Vivisimo was purchased by IBM and the engine was sold to a company that wanted to create a conservative search engine. Combines the results of the information sites with their own indexes.
Entireweb.com – Purchased the technology of EuroSeek and continued to develop it. In fact quite decent.
search.thunderstone.com – A technological demo for Thunderstone technology. Has an automatically created directory and a news search engine.
Qu & # 39; is ceUSeek – An old search engine (1995) turned directory. Always explore the sites, so it matters. Only scans and indexes of sites that pay to be in their repertoire. Index only sites, not pages.
There are really too many to list. For other research, I could recommend:
DMOZ Search Engine Category: http://dmoztools.net/Computers/Internet/Searching/Search_Engines/ – Requires an update, but it's still a good place to start.
ISDN.org – A group of small search engines that share ads. Never found any of these useful. I can not recommend them; I only include them for the sake of completeness.
I'm afraid these lists are not complete.