I have found Alessandro Bergamini's China gallery to hit all the right notes in that regard. Most of his images were made in Guizhou; a province located in the southwestern part of the country, and well known for its traditional rural villages, inhabited by minority groups like the Miao and Dong. Other images in the gallery were made in Guangxi , another autonomous region bordering Vietnam, and home to the famous cormorant fishermen of Guilin. I haven't been but I read that even though the water is too polluted now for fishing to be sustainable, these fishermen are catnip for many photographers, and earn their living in that fashion.
You have provided a great deal of information on a subject I am really interested in. I will be researching the websites on this list. I have started my own website at http://www.davidhintzphotography.com, I have sold some of my photos on microstock websites and now looking to sell directly from my own website. Thanks for all your work on this topic. I would be interested in your comments on my site if you had the time to look at it.
If you are a top notch, worldwide known photographer, it is very likely that customers from all over the world will want to use your services (for fashion, events, sports, architecture, products etc.). But as we are focusing on travel photography, commercial organizations that deal with traveling and tourism are more likely to hire you. Notable examples are hotels, tour companies, airlines and so on.
First and foremost, think about what made you decide, out of all the places in the world, to choose this particular destination. Whatever it is—the beach, the rides, the mountain, the galleries, the food—obviously appeals to you. If it didn't, you wouldn't be going there. That site or activity (or inactivity) is one of the things you want to photograph. But there are probably many other interesting aspects of the place you may not be aware of. That's where research comes in.
Knowing how to use your camera is essential to success as a travel photographer because more often than not, it’s those spur of the moment shots that generate the goods. If you can quickly adapt to the surroundings and know what settings to change in a split-second in order to capture a moment, you’re in with a pretty good shot of becoming a professional photographer.
Make use of people to give your images life and scale. If the facade of a particular building appeals to you, the picture may be that much better if you show people walking in front of it. They will give it scale and also let viewers know what sorts of people live there, how they dress, and the like. An outdoor café may be more interesting crowded with people than empty.