My articles are not selling!What are some of the possible reasons?

I have tried selling my articles in the marketplace of this forum to no avail. Before selling, I always make sure the articles pass Copyscape and are 100% unique. Although I am not a native, my grammar and writing skills are not bad. In addition, I have accounts at Triond, Ezine and Yahoo! Voices contributor network where I occasionally post my articles. How will I convince buyers that indeed my articles are worth buying? I have tried posting links of my published work but still my efforts are…
My articles are not selling!What are some of the possible reasons?

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