Type http://www.altavista.com/ then click Advanced Search
Fast Search Advanced|
Type alltheweb and click Advanced Search.
Size varies frequently and widely.
See tests and more charts.
|HUGE. Claims a billion pages, but
may be counting pages not fully indexed.
General Web database with often useful ranking by popularity. Far from comprehensive, but often finds "the best" pages.
New subject directory included.
|HUGE. Claims to be the biggest also. Often ties in
tests with Google,
Fast, and other HUGE ones.
General Web database. Use the Advanced Search with Boolean operators and results ranking options in SORT.
|NOT HUGE but HIGH QUALITY and BIG ENOUGH for many
Great precision in
"Search within results" feature. Easy to use. Excellent content and consolidation of pages from the same site make up for Infoseek's smaller size.
|HUGE. Claims will reach a billion pages soon. Sometimes
ties for first in tests.|
General Web database. Excellent ranking.
Advanced search worth mastering.
|Yes. Use " ". Precede common "stop words" with + (no space before the word) even in phrases in quotes.||Yes. Use " "||Yes. Use " "||Yes. Use " " |
In advanced search, terms in lower "filter" boxes always searched as phrases.
|Proper name searching||Enclose in " " or try without. Automatically looks for terms in close proximity.||Enclose in " " or use NEAR
|Enclose in " ".
|Enclose in " ". |
Enclose each variant form in " " and all forms in ( ) in top search box.
|No. AND assumed between words.
In Advanced Search, limited Boolean:
ALL = and
ANY = or
WITHOUT = and not
No ( ) or nesting.
|AND (default), OR,
NEAR (within 10 words).
Use only in Advanced Search larger box.
Do NOT use in A-V simple Search or the smaller "Sort" box in Advanced Search.
|No. OR assumed between words. Use sub-searching to focus or do equivalent of Boolean.||In top box, AND default.|
For OR, enclose terms or phrases in ( ) without typing "or".
Advanced search "filter" boxes offer partial equivalent of Boolean logic:
Must include = AND
Must not include = NOT
Should include prioritizes higher in ranking.
+ requires or
+ will allow you to retrieve "stop words" (e.g., +in)
|Available only in Simple Search (which defaults to OR).
We recommend Boolean logic in Advanced Search -- much more powerful and specific.
+ requires or
In top box,
+ requires or
|No. Add terms.||Yes. SORT BY box performs a sub-search.||Yes. In results, specify "Search within results." Very powerful and easy!||No. Add terms.|
|Based on page popularity measured in links to it from
other pages: high rank if a lot of other pages link to it.
Unless preceded by +, fuzzy AND invoked.
Matching and ranking based on "cached" version of pages that may not be the most recent version.
|By terms you specify in smaller SORT box on Advanced
screen. Dual search. "Sort" box searches on body of documents retrieved
with Boolean logic in larger "Boolean expression" box on Advanced
AND, improved by "ESP" ranking that really helps.
Can sort results by date at top of results.
Also seems to use "importance" and links to
In Advanced Search, SHOULD INCLUDE gives higher priority to word or phrase in box. Each box read as a phrase.
Easy to use Advanced Search boxes for these.
Offers Uncle Sam Google for US federal pages.
and filter by:
domain terms in Advanced Search
|In Advanced Search, can search within:|
link to the url
(Explanation of these distinctions.)
and filter by:
|No, and no stemming. Search variant endings and synonyms separately.||Use *.||No. But retrieves some variant endings by stemming.||No. Enclose variants in ( ) in top box to create
|No.||Yes. Upper case retrieves only matching upper
Lower case retrieves either lower or upper case. Also accent and character sensitive.
|Yes. Upper case retrieves only
matching upper case.
Lower case retrieves either lower or upper case.
|Language.||Yes. Major Romanized and Asian languages in Advanced Search.||Yes, extensive list includes major Romanized and Asian languages.||No.||Yes, extensive list includes major Romanized and Asian
Allows you to specify matching character sets. Read Help and Customize.
|Limit by age of documents||In Advanced Search.||Yes, in Advanced search. Supposed to be date updated.||Can request sort by date.||In Advanced Search.|
|Translation.||No.||Yes, to and from English and other languages. Click on Translate following result.||Yes, to and from English and other languages. Click on Translate following result.||No.|
|Click to go to any tool:||Size and General Features||Searchable or Browsable?||Evaluations of databases||Search boxes|
|The Invisible Web
|Large (over 10,000)
collection of searchable databases. Many academic subjects and
Quick Search a concept or topic. Advanced Search allows Boolean and other searches. Keep searches broad. Click GO.
Browse in "Hot List" and categories expand for convenient selection.
Can sort results Alphabetically or by Score (relevance - default)
Click database name for search box.
Links to matching subject categories at top of results get more databases in category.
Excellent HELP. Lycos "Searchable Databases" is a subset of the Invisible Web Catalog through partnership.
Click [more] to read complete evaluation.
|Yes, almost always.|
|Several long pages
listing and describing searchable databases on many academic topics. Pick
the section or page from the links near the top.
Done by an academic librarian with research in mind.
New search feature has greatly increased the ease of use of this site.
|BOTH. Search feature new fall 2000.||Yes, from academic librarian perspective.||None.|
|Large (# not
specified) collection searchable databases. Also selected web sites, often
of academic interest.
Search a concept or topic. Keep searches broad.
Two somewhat confusing results displays:
1. If boldface, numbered, and ranked by % score, results are subject sub-categories. Pick the most appropriate category to view searchable databases list.
2. If bulleted list not boldface, you have the searchable databases list. Click on title to go directly to site.
Click on Web Sites at top for selected web pages, often of high value in academic research.
|BOTH||None.||Rarely. Called "In Line Databases."|
|A Collection of Search
worthwhile, but hard to use list of searchable databases. List begins
after a number of other links to topics related to searching. Scroll down
the bar on the left to find the subjects with searchable databases.
Generally academic. Links at top often academic but not to searchable databases.
|Browsable with difficulty. Alpha list of topics down in the list on the left.||Some.||None.|
|Large database of
searchable databases, web pages with search boxes (not databases), and
just web pages. Although site
eloquently of the "deep" (their term for "invisible" web), many of the
links are to "visible" or "surface" web.
Hard to know which are databases.
Search using " " around phrases, and Boolean operators (complete set). Stems. Simple searches often retrieve too many documents.
"Categories" link at end of entry displays subject classifications assigned for easy access to more in category.
|Search, then use "Category" links at each entry to browse.||No
Some descriptions, some strings of keywords, some extracts from the page.
|Almost 14,000 of the
sites are city and state guides. Excellent resource for these. Some
valuable academic content in the rest.
Too tiny search box in upper left usually retrieves a more reasonable search area. Select the Search type or "Select a Search Engine" (not the default) and resubmit your search - annoying double work!
Results are a combination of subject categories with your terms and sites/descriptions. Click a "category" for more in the category (recommended), or click a database name to search it.
More options search (at bottom of results) allows combining terms and phrase search.
|BOTH.||Descriptions seem to be extracted from or supplied by the sites. Not evaluations by Search Power.||None.|
|Colorful subject groupings of often useful searchable databases. Some niche categories (women, gay & lesbian, and others can have useful academic value).||Browse by selecting icons or links at left.||None.||Yes.|
|From the Nanyang
Technological University Library, academic focus and Asian/Pacific
Alphabetical subject categories of a selection of searchable databases by subject start after the international general web search engines.
|Browse only.||Brief descriptions, with infrequent evaluations.||None.|
|Click to go to any tool:||Scope and General Description||Search Tips|
|Primary goal is to collect the "finest Internet
'gateway' sites." Also includes some databases, online journal links, and
full-text sites, and other items appropriate to a discipline.
Concisely annotated, and apparently organized by people knowledgeable in each subject area covered.
By the Hekman Digital Library at Calvin College.
|Browse by subject categories or Descriptors (alphabetical list of subjects covered). Or search easy form. Keep searches broad.|
|Collection of subject guides, mostly academic. Not annotated, but rated (5 checks the highest) for content, design, and more.||Browse or search, using AND, OR, NOT, and * for truncation. Keep searches broad.|
|Subject guides mostly academic on many subjects. Not annotated or evaluated. Many excellent.||Browsing by subject category or alphabetical list recommended. Search often misses things.|
|And "Internet Resource Guide" organized by Dewey decimal classification. Not searchable. Many good resources. Annotated and rated for reading level.||Browse subject categories.|
|Large, portal-type directory built by over 1,000 volunteer experts. Membership not required in most areas. Uneven quality, but often excellent and academic, depending on the subject. Click on the author of a section to view credentials. The site offers a lot of distractions like chat and has a lot of friendly, popular stuff along with the serious.||Browse, view complete list of subjects, or search. Search stems, resulting in peculiar matches.Click on LINKS or WEBSITES to find what Gateway pages there are.|
|Click to go to any tool:||Librarians'
|Size, type||Over 7,000
Compiled by public librarians in information supply business. Highest quality sites only. Great, reliable annotations.
Great, reliable annotations.
Co-operatively compiled by university & college-level, academic librarians of the UC campuses.
|Rich selection (# of sites not provided)
Selected as "college and research level Internet resources" aimed at "at the undergraduate level or above. " Brief annotations sometimes, often excerpted from page.
Many full-text resources under category "Digital library."
|About 1 million.
Scarce descriptions and annotations. Biggest and most famous directory around. Often useful. Many directories and search engines.
|About 1 million|
Generally good annotations done by "Guides" with various levels of expertise.
|No.||Yes. Use " "
|term term| requires exact match
|No. " " make searches fail.||Yes. Use " "||Yes. Use " "|
|AND implied between words. Also accepts OR and NOT, and ( ).||AND implied between words. Also accepts OR.||OR implied between words. Accepts AND, OR, NOT and
Recommend AND in most queries.
|+ requires |
|No.||No.||No. Use CTRL+F to locate search terms in results. Searching retrieves first all categories with your terms anywhere in them. Clicking on one of these categories retrieves all pages in the category - often much more than you want.||Yes. In results, select search within category or all of Yahoo.||After an entry, click More from ... site|
|Use *. Also
Can turn stemming off on both basic & advanced search pages.
|Automatically expands words. Use " " to search exact terms.||No.||Use *. Stems.||Use *.|
Not accepted consistently.
|Field searching||Can search within subject, titles, description, or parts
NEW Advanced Search allows Boolean searching by these fields, plus author and more.
|Select boxes under search box to limit to KW
|No.||t:requires terms in title
u:requires terms in URL