Content marketing is new tool that is being used by SEO for quite a lot of businesses so as to get a leverage over the others in terms of competition. but there are certain things that every marketer needs to know.
Writing correct and definitive content is important but what is more important is how the promotion for this is done. Time spend for promotion is as much important as time spend on writing it and as such a balance between the two should be maintained.
Also, it has been found that content is more than 20000 words long has a much higher ranking that those that is below 2000 words. Which is why it is important you understand the length of the piece as well.