Enjoy Rome
Information about posting letters and parcels from Rome, and about the Vatican's postal system.
http://www.enjoyrome.com/tourist/cityguide/mail.and.phones.html

Focus Online Magazine
Spotlights Italy's telephone and postal services.
http://www.focusmm.com/italy/it_ptt.htm

Global Road Warrior
Includes the details of courier companies in Rome.
http://www.worldtradepress.com/grwUnigroup/country/italy/13grw.html

In Italy.com
Italian town and post code locator.
http://www.initaly.com/ittnlocat.htm

Italy Hotels_Rome.com
Major post offices in Rome.
http://www.italyhotels-rome.com/tourist_info/post_offices.htm

Poste Italiane
Official website of the Italian postal service.
http://www.poste.it/

Roman Homes
Covers the essentials: stamps, mailboxes and parcels.
http://www.romanhomes.com/your_roman_vacation/post_office.htm

Roman Homes
Tells you all you need to know about mailboxes, courier services, money wiring and fax services in Rome.
http://www.romanhomes.com/your_roman_vacation/mailbox.htm

Rome Central
Advice on how to send mail, post office opening hours, paying bills, postal rates and more.
http://www.romecentral.com/banking.php

Rome Buddy.com
An introduction to postal system in Rome.
http://www.romebuddy.com/givesadvice/publicservices.html

RomeBy.com
Post offices in Rome.
http://www.romeby.com/tourist/tour.htm

US Embassy
Lists a handful of courier firms and express delivery services in town.
http://www.usembassy.it/cons/acs/useful.htm