Language Resources:
Spanish

Search Engines

Infocentro - Mexican search engine/index.
LatinoWeb - Index (with search engine) of resources for Latinos in the U.S.A.
Ozú Buscador (España) - This WWW index is a veritable treasure chest of sites in Spain, similar to "Yahoo!".
Terra
CiberCentro - Buscadores - Search engines for various Spanish-speaking countries.
La Brujula - Search engine for Argentina (similar to AltaVista).
Grippo - Argentine search engine.
WhoWhere? Direcciones de E-mail - See E-mail addresses, phone numbers, yellow pages, organizations.
Yahoo! en español
Google - You can click on "Language tools" next to the search box to search for pages in Spanish. Also, Google has search engines for many Spanish-speaking countries; just add the two-letter country extension (.mx for Mexico, .ar for Argentina, .pe for Peru, .es for Spain, .cl for Chile, etc.) after .com in the address bar of your browser.