Search Engines

AlltheWeb
Single database of indexed Web pages. Displays documents that contain all of the words specified in the search. Very large database, but many duplicate records are retrieved in searching. Ability to search only video or audio files.

AltaVista
Offers 2 levels of searching: simple and advanced. Results are rank-ordered according to the number of words retrieved in the query. Allows searches to be constrained to particular subsets of information, such as web pages or Usenet news articles.

Ask
Natural language searching retrieves "answers" or web sites from a database of previous queries.

Bing
New search engine from Microsoft that promises to better organize search results and offer more search refinement tools than competitors.

Clusty
This metacrawler groups search results into 'clusters' rather than providing search results in long lists. By Vivisimo. 

Duck Duck Go
Newer generation search engine that promises to provide better results.

Excite
Offers concept search capabilities by matching words with ideas that are closely related to them. Results are displayed 10 at a time, in decreasing order of confidence. Links results to additional sites of interest.

Google
Uses phrase searching and relevance ranking based on link analysis of each site. Currently the search engine with the largest index.

Google Groups
Searches newsgroups on the Internet. Allows for precision searching, using boolean operators, keyword symbols and context operators, and query filtering.

Google Scholar
This new Google search tool targets "scholarly literature, including peer-reviewed papers, theses, books, preprints, abstracts and technical reports from all broad areas of research." Currently only in beta version with no advanced search features.

Guide to Search Engines
The site provides an overview of the different types of search engines and their advanced searching capabilities. From the University at Albany Libraries.

HotBot
Displays documents that contain all of the words specified in the search. Supports phrase, proximity, and boolean searching.

Lycos
Offers various search capabilities, as well as additional information such as site reviews, city guides, road maps, and a software section.

Metacrawler
Meta search engine that returns results from some of the main engines and gives them a quality ranking. Checks for dead links.

Scirus
A 'comprehensive science-specific search engine' that filters unrelated results. Links to full-text articles in our subscribed Science Direct journals.

Search.com
Metasearch engine owned by C|Net. Also includes categories for browsing.

Starting Point
Offers 12 general search resources with standard boolean capabilities. Allows customers to personalize the search engine for future use.

WebCrawler
Allows for basic searching, with limiting and broadening techniques. Provides search boxes at the top of every page for convenience.

Who Where?
Searches for people on the internet, looking for either an e-mail address or a phone number and street address.

Yahoo!
Defined as a "searchable, browsable hierarchical index of the Internet." Searches categories, titles, and comments which contain all the requested keywords. Offers the ability to customize queries.

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Update 7/15/09