Here's an interesting (albeit too short) video teaser of National Geographic Traveler photographers Jim Richardson and Catherine Karnow sharing some of their tips. The video was taken by Traveler's Susanne Hackett at its photo seminar called "A Passion for Travel: Photos that Tell the Story".
A good quote from Richardson: "Great pictures come from great travel experiences"
Check out NG Traveler's Blog Intelligent Travel for schedules of the Photo Seminars, and other travel news.