My start as a writer came through writing articles. (More about that here.) I’ve received several inquiries about how to get started. I recommend targeting a few magazines that publish articles about topics you’re interested in writing about. Look through the magazine racks and ask yourself, “Who would be interested in something like this?” (The Sally Stuart Market Guide is an awesome resource. Or The Writer’s Market.)
Next, you need to get a copy of the magazines you’ve targeted and study them. (Many have on-line articles.) Look at the length of the articles. Check out how they start (statistics, personal story, fact, hook?).
Then you need to see how the articles are divided (sub-headers? with bullet points? with stories or quotes from others?)
You can actually take the material you have and fit it to different publications. Instead of writing one article (which you’ve done) and sending it out to see who it will fit, instead look at each magazine and figure out how what you’ve written could fit THEM.
It’s like knitting a sweater. Instead of knitting a simple sweater and sending it around to see who it will fit, think about each magazine editor as someone who wants a sweater. BUT they want one that will perfectly fit them. The style, fit, form, etc. is unique to each person and … and each mag.