• AllPages.com Yellow Pages
• Alta Vista advanced with option for multiple languages
• Ask Jeeves
• Blogarama - The Blog Directory
• Dogpile
• Clusty
• Excite
• Google
• Hotbot
• Infoseek
• Kartoo a new meta search engine (2003) in several languages
• Lycos
• Mamma.com, mother of all search engines
• Metacrawler
• Mooter
• ProFusion, data from multiple specialty search engines - can be slow
• RefDesk.com, facts on the Net
• Search Engine Watch
• Sherlockhound metasearcher
• Teoma
• Webcrawler
• Yahoo 
• ZenSearch non-profit search engine
• 800 Go

• Yahoo People Search
• Internet Address Finder
• Who Where
• Switchboard lets you find addresses and other info for people or businesses
• MapQuest

Directories of Search Engines

• iTools, Dictionaries, thesaurus, translators, conjugators, anagram creators, maps, phone numbers, currency exchange.

Google Groups, formerly DejaNews. 
Note Google supports the 'X-No-archive: yes' header, and will not archive any articles that contain this text either in the header or in the first line of the message body. 
 

• Searches are not sensitive to capitalization. Punctuation is ignored.
• word1 word2 - Matches documents containing word1 and/or word2 
• word - Matches docs containing the word exactly
• "word1 word2" - Matches docs with the exact phrase
• word1 +word2 - Matches docs with word1 and word2 
• word1 -word2 - Matches docs with word, not word2
• word1 url:word2 - Matches documents with word1, but only when their URLs start with word2 

 
• search images using Google 
• Advanced searches on Google