There are a lot of Search Engine. Here a list of what I found:
- http://www.hakia.com/ (Beta): The basic promise is to bring search results by meaning match – similar to the human brain’s cognitive skills – rather than by the mere occurrence (or popularity) of search terms;
- http://www.powerset.com/index.html (Not still released) : consumer search engine based on natural language processing.
- http://www.chacha.com/ (Beta): ChaCha’s goal is to provide a better search experience by combining results that are hand-picked by our knowledgeable human guides with the best computer-generated search results;
- http://search.wikia.com: A project by Wikia to create the search engine that changes everything;
- http://www.kayak.com/ : Kayak.com searches hundreds of travel sites to give you the widest possible choice of flights and prices;
- http://www.toptenwholesale.com/: TopTenWholesale is a vertical search engine that connects buyers of general merchandise wholesale products to manufactures, importers, distributors, auctioneers, independent retailers, flea marketers, drop shippers and any reseller of new and closeouts merchandise;