Search Engines

http://en.wikipedia.org/wiki/Web_search_engine 

http://infolab.stanford.edu/~backrub/google.html

http://www.searchengineguide.com/andy-beal/microsofts-robert-scoble-discusses-search-engine-technology.php

 

 

 http://www.dlib.org/dlib/june04/lossau/06lossau.html