I recommend the 32 minutes of video podcast at http://podcast.lcbo.com/lcbo/learn/podcasts/discover/videos/12_wines_of_bordeaux.html developed by LCBO, the government-run organization overlooking the sale of wine in Ontario.
I found the video to give to a good overview of the various wine regions, the unique caracteristics of wine making for each one. At the same time you catch some good glimpses of majestic Bordeaux, Médoc, Graves, Entre-Deux-Mers, St Emilion and the nearby Côtes, and Sauternes. You get a good sense of why the Bordeaux region holds the title of wine capital of the world and what it does to retain the title. More importantly one is left with a better understanding of the rich range of wine offerings. Bordeaux are wines of winemakers who value terroir. A votre Santé!