Rome-Wikipedia
The encyclopedia article provides useful facts for anyone who might wish to explore the city in depth. The article, along with general information, provides lenghty paragraphs on the history of the city, its politics, administration, government, authorities, demograhic state, etc.
en.wikipedia.org/wiki/Rome

Rome guide tourist information
Site has been created with the aim of giving a wide range of information to all those who are thinking about visiting Rome.
http://www.rome-guide.it/

Roma Travel Guide
Page presents all necessary information useful for every tourist, who plans to visit Rome
http://www.virtualrome.com/

Rome Explorer
Versatile guide to attractions in Rome gathered in one place
http://www.romexplorer.com/

Rome Info
Rome.info is an independent, non-commercial website designed to provide visitors and new arrivals to Rome with the most up-to-date information about Rome and its surroundings.
http://www.rome.info/

Photo Roma
Photo Roma is one of the largest Rome photo website.
http://www.photoroma.com

About Rome
This page contains a lot of information about accomodation, studying in Rome, transportation
http://www.aboutroma.com/

Roma 2000
This site is born to give information to tourists on the services and artistic heritage of Rome
http://www.roma2000.it/

City Of Roma
Municipal site. Includes city departments, community news, photographs, calendar, and city directory.
http://www.cityofroma.net/

Roma File
Rome city guide, with information for tourists and expatriates.
http://www.romefile.com/

Roma Tourismo
A valueable site containing all useful information for every tourist willing to go to rome
http://www.romaturismo.it

Transport in Rome
Desription and schedules of public transport in Rome
http://www.atac.roma.it/

Capitolium
This website contains more than 1,000 files about history, ancient life in Rome
http://www.capitolium.org/

Treniitalia
The official site of Italian train company.Everything you need to organise your train trip
http://www.ferroviedellostato.it/

Roma Termini
The site gives detailed information on all services available in the main train station in Rome
http://www.grandistazioni.it

Regione Lazio
The official site of region Lazio offers thorough and detailed information on its activities and Regional Laws
http://www.regione.lazio.it

Parco Appia Antica
The official website for the Old Appian Way Regional Park.
http://www.parcoappiaantica.org/

Rome's Opera
The official websitefor Rome's Opera House.
http://www.opera.roma.it/

Roma guide
Interactive touristic guide of Rome with Road map and itineraries to visit monuments, museums, hotels and restaurants.
http://www.abcroma.com

Vatican Official website
Official website of The Vatican City, the seat of Pope
http://www.vatican.va/