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Google |
Kartoo |
Yahoo! Search search.yahoo.com |
Teoma http://www.teoma.com/ |
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| Special features | Effective ranking system puts
most cited pages first in results list. Indexes text behind pdf and gif files.
Caches pages when indexed. Searches first 101K of page ONLY. |
A metasearch engine, this provides a visual "map"of search results, a la Grokker. | Second to Google in size of results. Has a small collection of reference sources under "Shortcut" | Suggests categories ("communities") of results. |
| Phrase searching | Yes. Use " ". Searches stop words in phrases. | Yes. Use " ". | Yes. Use " ". | Yes. Use " ", searches stop words in phrases |
| Combining multiple terms | Default AND in Basic, - for NOT, capitalize OR. Will search ANY= or WITHOUT= in Advanced, no nesting. | Default AND, can use OR, or NEAR. No nesting, no NOT. | Default AND. Capitalize OR, NOT, nest with ( ). |
Default AND in Basic, capitalize OR. |
| +requires -excludes |
-excludes +retrieves stop words (not needed in phrase searches), moves results up in ranking |
-excludes, +retrieves stop words |
+ requires. -excludes, theoretically, but inconsistently | |
| Results ranking | Automatic fuzzy AND, with pages to which many sites link placed first | Arranges returns by topics, with interrelations shown via mouse-overs | Automatic fuzzy AND | Displays sponsored sites first, clearly labelled. Within 'communities', ranks by 'subject specific popularity'. |
| Truncation | Automatically stems with Google-defined rules. Prevent by using a + in front of the term. ~ searches Google-defined synonyms. | Yes, use * | No, search with OR | Automatically stems with Teoma-defined rules. Prevent by using a + in front of the term. |
| Case sensitivity | No | No, but if capitals are used, exact matches will be required from some engines. | No. | No. |
| Subsearching | Use "search within results" and add terms | Yes. Use "Add a topic." | Add terms. | Use 'Refine' suggestions |
| Field searching | Yes, but more easily in Advanced. In Basic, use intitle:, inurl:, site: | title: url: host: domain: text: image: etc. | intitle:, inurl:, hostname: in
Basic. In Advanced, select from menu |
Limited, easier in Advanced. In Basic, use allintitle:, allinurl:, geoloc:NA |
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