Search till u drop

DYK:About these search engines
1. a9.com is a subsidary of amazon
USP is the optional "all-in-one" search. For google users, this means, u can search Web,Images, books all at the same time.
What caught my attention was this line "Search results enhanced by Google. Results also provided by a9.com and Alexa."displayed at the bottom of the search results page. I was trying to figure out what they meant,when I stumbled upon this:
http://www.stung.co.uk/search-engine-relationships.html.
http://www.bruceclay.com/searchenginerelationshipchart.htm
2. previewseek
They claim to be "the world's most advanced artifical intelligence based search engine launched to the world on August 1st, 2005". In comparison to Google or a9, what I liked the most about the search experience was the absence of sponsored links in the search results(Duh! its still Beta). I find these links extremely annoying!



