Book flights direct from Air Portugal.  
Rent a car.
Flights and general information on the country.
5 day weather forecast for the Portalegre area.
Official Portugal tourism website.
Regional wine website in English and French as well as Portuguese.
A wine estate just a few kilometres North of Assumar on the road to Urra.
The Adega Perdigão, a regional wine cellar.    
Adega Lima Mayer wine-cellars.  
Homepage of Peter and Rosemary Eden with other houses to rent and a lot of useful information.
Another beautiful estate in the Northern Alentejo.
Go-karting in Portalegre.
Waterskiing at Avis.  
If you want a trip in a hot air balloon …
Portuguese wine in Denmark.