International research on the right position of address
(by UPU Universal Postal Union)
http://www.upu.int/post_code/en/postal_addressing_
systems_member_countries.shtml

Research of postal codes in the world (by UPU Universal Postal Union)
http://www.upu.int/post_code/en/list_of_sites_by_country.html

Postal administrations members of U.P.U. (Universal Postal Union)
http://www.upu.int/pls/ap/www_sites.display_sites?p_language=an

E-commerce by UPU (Universal Postal Union)
http://www.upu.int/e-commerce/en/index.shtml

News from U.P.U. (Universal Postal Union)
http://www.upu.int/news_centre/en/index.shtml

AIDIM (Associazione Italiana per il Direct Marketing)
http://www.aidim.it/

FEDMA Direct Marketing Europe Association
http://www.fedma.org/italiano.71059.en.html

Holidays and Celebrations around the World
http://www.earthcalendar.net/_php/DateSearch.php

Research of world maps and much more
http://www.multimap.com

Research of routes, maps
http://www.viamichelin.com

Google
http://www.google.com