Tourism Information
Algarve.org - transportation, travel agencies, heritage, nature, leisure events and other information;
Portugal InSite - Portugal's official tourism website.

Meteorology
weather.com - forecast for Portimão;
CNN.com - present weather and forecast;
MSNBC.com - present weather and forecast.

Airports
ANA - Aeroportos de Portugal - Portugal's airports.

Transportation
CP - portuguese railroads, trains;
EVA Transportes, SA - buses.

Rent-a-Car
FaroCar - car rental and other services.
EuropCar - gasoline, diesel, executive class;
Algarve Rental - car and scooter rentals;