Top 100 Alternative Search Engines: http://www.readwriteweb.com/archives/top_100_alternative_search_engines.php
Google Galore (many options) http://www.google.com/intl/en/options/
Google advanced operators: http://www.google.com/help/operators.html
Search Engine Guide: http://searchengineguide.com?searchengines.html
Search Engine Watch: http://searchenginewatch.com/
Clusty: http://clusty.com/
European Search Engines: http://www.netmasters.co.uk/european_search_engines/
Teoma: http://www.teoma.com/
W3 Search Engines: http://www.cc.gatech.edu/gvu/search_engines.html
(a directory of the most useful search engines on the Web)
