Referências

Websites:

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

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

http://www.google.com/technology/

http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=6,285,999.PN.&OS=PN/6,285,999&RS=PN/6,285,999

http://www.robotstxt.org/wc/norobots.html

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

http://www.maps.com.br

Artigos e Livros:

Brin, S. & Page, L. (1998). The Anatomy of a Large-Scale Hypertextual Web Search Engine

S. Muthukrishnan – Efficient Algotithms for Document Retrieval Problems

Lawrence, S. - Winners don't take all: Characterizing the competition for links on the web

Hubbard, J. - (1999) – Indexing the Internet