Search Engines Compare

	Google	Yahoo!	Msn
Strengths	The largest search engine which indexes most file format including PDF, DOC, PS. The best relevance rank based on sites' linkages and authority	Good relevancy ranking. Providing links to Yahoo directory Supporting full Boolean searching	Search strategy building and Boolean searching Automatic local search options. It incorporates Encarta Answers to find  fact/name, statistic/conversion, definition/spelling, or get the answer to a math problem/equation.
Weaknesses	No nesting, no truncation and not support full Boolean Index first 101 KB of a webpage and 120 KB pdf files	No truncation Including some pay for inclusion sites. Link searches need to include http://	Limited search advanced features Inconsistent availability of truncation
Size (# pages)	About 8 Billion (1 Billion not full-text searchable)	About 4 Billion	About 1.5 Billion
Other databases	Directory - News - Images - Groups - Froogle - Catalogs - Print - Scholar	Directory - News - Images - Maps - People - Yellow Pages - Travel - Products	No.
Boolean	AND, -, OR	AND, -, OR, NOT, ( )	AND, -, OR, NOT, ( )
Default	And	And	And
Truncation	No, but stemming, * used as wildcard(s)	No	No
Limits	Language, file type, date, domain	Language, file type, date, domain	Language, site
Stop Words	Varies, + searches, or enclose in “”	Very few	Varies, +searches
Field	Intitle, inurl, link, site, allintitle: allinurl: filetype: link: site: cache: info: ( more ) Also in Adv. Search form	Intitle, url, site, inurl, link, hostname, Also in Adv. Search form	Link, site, loc, url
Sorting	Relevance, site	Relevance, site	Relevance, site, sliders
Capitalization	No	No	No
Field searches	intitle: inurl: allintitle: allinurl: filetype: link: site: cache: info: ( more ) Also in Adv. Search form	intitle: inurl: link: site: url: hostname: Also in Adv. Search form	intitle: inurl: site: geoloc: lang: last: afterdate: ( more ). Also in Adv. Search form
Language	Can set using Preferences page	no	Dual language search preferences