Search Engine Watch Search, Engine Listingshttp://www.searchenginewatch.com/links
This is a great place to begin any search on the Web. Follow the links on this page to major search engines, "metacrawlers," and specialized, targeted search engines.
Metacrawlers
Metacrawlers are "search engines of search engines." They look through multiple search engine indexes and display the most relevant results from each one. Three of the best ones are:
Ixquick
http://www.ixquick.com
This metacrawler searches 14 search engines and ranks results by relevancy. Can do regular keyword searches, natural language searches, and advanced boolean searches.
Metor
http://www.metor.com
Searches nine of the most popular search engines.
Search.com
http://www.search.com
In addition to looking at the big search engines, this metacrawler searches through 800 specialty search engines, based on the search string entered.
Major Search Engines and Directories
Ask Jeeves!
http://www.ask.com
This search engine responds to natural-language queries. such as "When did Washington cross the Delaware?" Just type in your question and Jeeves will attempt to find a web page with the answer.
The Invisible Web
http://www.invisibleweb.com
This engine indexes sites that are invisible to other, regular web search engine technology.
AltaVista
http://www.altavista.com
One of the original Web search engines with academic roots, and still one of the largest and most popular.
Lycos
http://www.lycos.com
Another well-known search engine with roots in the academic world.
Northern Light
http://www.northernlight.com
This engine's "Power Search" feature is very useful, allowing you to screen out commercial web sites (and Northern Light's own "special collections" findings, which require a fee for access). Returns links and, on the left side of the page, folders with more links, arranged by subcategories based on your initial search.
Yahoo!
http://www.yahoo.com
The original Web directory. You may search by keyword (powered by Google), or surf by category. Each category you select reveals more subcategories. Keep selecting categories until you find what you need.
Specialty Search Engines
Search4Science
http://www.search4science.com
A science engine sponsored by Northern Light.
SciSeek
http://www.sciseek.com
Science search engine and directory.
Google's Usenet Search
http://groups.google.com/googlegroups/deja_announcement.html
Use this engine to find a Usenet newsgroup relevant to your research topic.
Specialty Search Engines
http://www.westmark.pvt.k12.ca.us/LRCweb/specialtysearch.html
A directory of specialty search engines. Scroll down below the first table to find the most helpful lists.
