If you are interested in taking your own photos to accompany the articles that you write, one of the best things you can do is invest in a magazine subscription. You can read up on techniques and gear as well as get terrific tips that will help you take better pictures.
There are many photography mags out there, so deciding which one to choose can be a little difficult. You can always go to the bookstore and browse, but you can also take a look at this list for an idea of what the various publications cover. I get several, including Outdoor Photographer, American Photo and Popular Photography. Each has its own niche, and I learn a good deal of information from them. The more you can learn, the better your chances are of getting quality photos to go with your articles.