During my wine sales days, the one tool I returned to more often than any other, except for a corkscrew and a glass, were maps. For many years, heavy tomes or some bad copies from those heavy tomes accompanied me on my sales calls.
There is no substitute for visual reinforcement when it comes to educating. And that is what I did more than sell. I explained and demonstrated what made one wine different from another. This set me apart and grew my business.
Now we all have this information at our fingertips, assuming you know the right place to find it. There are some great map resources out there - and more coming all the time, here are a few of my favorites.
The first two are excellent for global exploration, you can drill down to fairly specific regions. Play with them and decide which ones give you the style and look you like the most.
Kobrand Wine and Spirits Maps
Wine Spectator Maps
These links will be placed in the Resources section as well.