Alta Vista
Indexes over 31 million pages on 627,000 servers as well as over 4 million Usenet newsgroups. Ideal for a general topic search.
Ask.com
Ask.com's innovative search technologies deliver fast and relevant information for millions of people every day
Beaucoup!
Indexes search engines by subject. When you select a subject, it presents you with a variety of search engines and databases for that subject.
Business.com
A search engine and directory that specializes in business. The home pages organizes the world of business into 26 major industry categories, from accounting to transportation. The directory contains more than 400,000 listing within 25,000 industry, product and service subcategories.
Excite
Excite is one of the most recognized names on the Internet, and among the Internet's most personalized portals featuring a completely customizable start page. Excite features comprehensive search tools, a popular Webmail platform and robust content and resources from over 100 leading providers.
FirstGov
FirstGov is an easy-to-search, free-access website designed to give you a centralized place to find information from local, state, and U.S. Government Agency websites. All government information on the Internet will be available through FirstGov. When you need information from the U.S. Government on any topic and you don't know how to find it, you can always start at FirstGov. You don't have to know what department or agency you need; FirstGov will tell you what government agency can help you, and link you to it.
Indexes over 1 billion URLs and returns search results in lists ranked by relevancy.
ixquick
Searches many prominent engines simultaneously, de-duplicates search results and displays these results ranked by relevancy. Supports natural language and complex Boolean searches.
ii.org
A searchable, annotated subject directory of more than 6,600 Internet resources selected and evaluated by librarians for their usefulness to users of public libraries. It's meant to be used by both librarians and non-librarians as a reliable and efficient guide to described and evaluated Internet resources.
Live Search
Live Search engine offers some innovative features, such as the ability to view additional search results on the same web page (instead of needing to click through to subsequent search result pages) and the ability to dynamically adjust the amount of information displayed for each search-result (i.e. just the title, a short summary, or a longer summary). It also allows the user to save searches and see them updated automatically on Live.com.
Looksmart
Links to over 1 million web pages arranged in more than 70,000 categories by editors. Search by keyword or browse by category. LookSmart Live! is an interactive resource where you can ask the LookSmart editors and other users where to find information on the web.
Lycos
Powerful search engine with the ability to limit searches by media, which makes it useful when searching for graphics, sound or movie files. Also has 18 topical webguides. Indexes sites based on headers, titles, links and keywords at the beginnings of pages.
Metacrawler
Does not maintain its own index, but sends queries to several Web search engines, including Lycos, Infoseek, WebCrawler, Excite, AltaVista, and Yahoo. MetaCrawler then organizes the results into a uniform format, and ranks them by relevance. Supports Boolean searching.
Northern Light
Enables users to search the entire World Wide Web and its Special Collection of two million articles from over 7,000 sources -- including business and trade publications, magazines, newspapers, newswires, academic journals, and more -- not available from any other search engine. Results are prioritized by best match and sorted into Custom Search Folders to help users narrow their search. Individual users are charged for Special Collection articles on a pay-per-document basis. Subscription rates are also available. All searching, Web documents, and premium document summaries are free.
Scirus
Scirus is the most comprehensive scientific research tool on the web. With over 450 million scientific items indexed at last count, it allows researchers to search for not only journal content but also scientists' homepages, courseware, pre-print server material, patents and institutional repository and website information.
Science Accelerator
Science Accelerator searches science, including R&D results, project descriptions, accomplishments, and more, via resources made available by the Office of Scientific and Technical Information (OSTI), U.S. Department of Energy. Science Accelerator was developed and is made available by OSTI as a free public service.
Science.gov
Science.gov is a gateway to over 50 million pages of authoritative selected science information provided by U.S. government agencies, including research and development results.
WebCrawler
Good introduction to web searching, also provides ratings of web sites.
World Wide Science
WorldWideScience.org is a global science gateway—accelerating scientific discovery and progress through a multilateral partnership to enable federated searching of national and international scientific databases and portals.
Yahoo!
Organized in directory fashion, with plenty of local coverage. This site also has daily weather reports, headlines and stock quotes, as well as a listing of live events on the web scheduled for that day.