Google - fast; relevant, high
quality hits; keeps pages in cache, searches PDF format and images. Offers
the largest collection of web pages of any crawler-based search engine.
Wide-spread praise for its high relevancy
Search send to several individual search engines.
None search Google (a top choice for web searchers).
Vivisimo - clusters
results into a hierarchy; "no paid listings".
http://vivisimo.com/html/index.html
Ixquick – “The world’s most powerful metasearch engine!” http://www.ixquick.com/
Profusion – “Search the top 1000 Search Sources”; Has a lot of control with advanced search. http://www.profusion.com/