The Port Forum
- Port enthusiasts share tasting notes and friendly advice.
- http://www.theportforum.com/

For The Love Of Port
- Port and Madeira tasting notes and a bulletin board. Also offers wine tours.
- http://www.fortheloveofport.com/

Port Wine Institute
- Official resource includes history, viticulture, standards, and directories of bottlers and traders.
- http://www.ivp.pt/

Madeira Wine Guide
- Non-commercial provider of information about Madeira's history, styles, grape varieties, producers, vintages, and winemaking.
- http://www.madeirawineguide.com/

The Vintage Port Site
- Extensive information on Vintage Port, including history, serving tips, discussion forums, and a vintage database. From the Symington group of Port producers.
- http://www.thevintageportsite.com/

Port Wine Appreciation Pages
- In-depth information on the production, storage, cellaring, serving etiquette and enjoyment of Port. Includes producer and vintage commentary.
- http://www.the-port-man.fsbusiness.co.uk/