IVDP - Die offizielle Seite des Portweininstituts
O-PORT-UNIDADE - Das Port Projekt
The Port-forum - Der Chat zum Thema Portwein
Vintageport.se - The swedish Port Site
The Portwine-Brotherhood Confraria do Vinho do Porto
Schott-Zwiesel - Glas in Perfection
Selters - Perfect Wine-Company
Wine in Moderation - Be responsible
Military Map of the Douro Valley (1:50.000)
The bigfortifiedtasting - The grand anual fortified tasting
Port to Portwine - Infopage on Port