Search Tool Comparisons
|
Type |
Size |
Features |
||||||
|
Search Engine |
140 million + URLS (2000) |
Clustered results; categorical
searches; full-text articles from 7,000+ sources |
||||||
|
www.about.com |
Directory |
1 million (2001) |
700 guide sites/36
channels; 50,000 subjects (selected); related searches |
No (but + includes and –
excludes) |
||||
|
Directory of gateway pages
(databases, full-text documents, gateways, journals) |
800 |
allows research by resource
type, discipline and subject (selected) |
and |
and, or, not |
Phrase |
No |
No |
|
|
Searchable database
directory (“search engine for search sources”) |
100,000 databases and
searchable sources (claimed) |
allows access to searchable
sources within websites |
and |
and, or, andnot, |
Phrase |
Yes (*) |
No |
|
|
Meta-search Engine |
millions (theoretically) |
13 search engines queried |
and |
+, - |
Phrase |
No |
No |
Table
1-B Search Tool Comparisons (continued)
|
Phrase searching |
Sub-searching |
Thesaurus/ Controlled Vocabulary |
Stop Words |
Display |
Documentation |
||||
|
Yes (use “”) |
No |
No |
Relevance Custom
Folders, date, clustering |
10 records (b,c,e,h,i,j) |
Help, PR |
||||
|
www.about.com |
No |
Yes (use “”) |
Yes (click on “more from
site”) |
No |
No |
10 About.com/ 10 Web
(a,c,e,i) |
None |
||
|
Discriptor (browse),
discipline (browse), title words, keywords |
Yes |
Yes (within selected
categories) |
Descriptors, disciplines |
Titles, keywords,
descriptors |
No |
Relevance |
All (f,l) |
Help, FAQ |
|
|
No |
Yes |
Yes (by subject) |
No |
No |
No |
Alpha |
All (f) |
Help |
|
|
No |
Yes |
No |
No |
No |
No |
Relevance, site, source |
20 (10 per source)
(b,e,i,m,n) |
Help, PR |
a. Suggested related searches
(overall)
b. Relevance/rank
c. Category of result
provided
d. Summary from meta tags
e. Summary from document text
f. Summary created by indexer
g. Resource number provided
h. Site category listed
i. URL listed
j. Link to more results from
site
k. Link to other pages at
site with same name
l. Link to index record
m. Link to similar resources
n. Search engines utilized
Table
1 based on Search Engine Comparison Tables at Search Engine Showdown (http://www.searchengineshowdown.com)
Compiled
by Geoffrey Skinner, 3-30-2001
Search
Engine Showdown (http://www.searchengineshowdown.com)
Finding
Information on the Internet: a tutorial (rev. fall 2000). University of
California, Berkeley (http://www.lib.berkeley.edu/TeachingLib/Guides/Internet/FindInfo.html)
Northern Light (2000?). Sagle, Idaho: Northern Webs. Retrieved Mar. 26, 2001, from the World Wide Web: http://www.northernwebs.com/set/northern_lights.html