Have you noticed that a lot of blog sites for writers are written by other writers who are learning their craft and then blogging about it as if they knew the score? (selfpublishedauthor.com)
I have seen it before, here and on other blog sites of this nature. (religion.blogs.cnn.com)
Once you have found your niche, visit other blog sites in your niche and share with them what you know. (readersfavorite.com)