TAP Portugal
- The Portuguese airline provides information on its fleet, offices, destinations, history and bookings, including a virtual auction.
- http://www.flytap.com/

TransPor
- The official guide to public transport in Portugal. Offers a journey planner using bus, flight, ferry and/or rail.
- http://www.transpor.pt/

Portuguese National Railways
- History, lines, timetables and information about the company.
- http://www.cp.pt/

Lisbon's Tramways in 2000
- Leif Spångberg's gallery of expandable photographs with captions of the tramway system in Lisbon.
- http://www.tramways.com/tramways/portugal/lisbon1/lisbon1h.html