To write an article or story that sells,keep an eye on the news,and not just the celeb news,and try to imagine how news stories will impact various niches of the population.Give a story a new spin, even if it's an old story about a fading star.
Be topical,be brief (oh, and be funny....where the topic allows.)
Then,when you come to submit it to content sites and directories,price it right! Start low, at about ten dollars,and work upwards as your work becomes more in-demand. More ideas on my Freelancing Website