The oldest and most prolific internet applications are search engines. Although google monopolized much of the market in recent years, particularly in U.S.A., we see that there are a large number of them. It's always good to search different portals for different results and can choose the best at our discretion.

http://www.google.com/

http://search.yahoo.com/

http://www.altavista.com/

http://search.lycos.com/

http://a9.com/

http://search.msn.com/

http://search.aol.com/

http://s.teoma.com/

http://clusty.com/

http://www.wisenut.com/

http://gigablast.com/

http://www.ask.com/

http://www.excite.es/

http://www.netscape.com/

http://www.aliweb.com/