http://www.taylor.pt/index.html
http://www.columbia-dist.com/Port%20page.htm
http://www.portuguesewine.com/oporto.htm
http://www.vhl.co.uk/list.htm
http://www.rozesport.com/forum/messages/66.htm
http://100yearold.seppelt.com.au/vintage/para_tawny_1900.html
http://www.grahams-port.com/chart.htm
http://www.wineontheweb.co.uk/vintage_port_news/vintage_port_news.html
http://www.fonseca.pt/wines3.htm
http://www.gladys.demon.co.uk/vintage%20port.html
http://www.grahams-port.com/report99.htm
http://www.thewinemerchantinc.com/educational/Port.html
http://warre.com/declare97.htm
http://www.yakimariverwinery.com/tech_data_sheets/johnsport94.htm
http://www.monsterwine.com/vintage_port.htm
http://www.broadbent-wines.com/quintadocrasto/quintadocrasto-1995vintage-port.htm