Precaution need to be taken while writing a New post

         First of all we need to search the web whether the post on it (Topic you thought of writing it)already existed.If it already existed try to check the intensity of the posts i.e Quantity.if it is highly  populated post then better of leaving it or at least change the title and search for better keywords to your post  title.

      Even though there are posts on that topic that are n't up to mark then you can write the missing content on that posts.

    A new post which doesn't existed in web till now is the one which brings good traffic to your blog (if it has significant amount of searches).