Have you wondered why other peoples blogs are getting so much traffic and yours may not? One big reason might be the content you are offering to your readers. That does not necessarily mean what you are writing, but instead how much content or how often you are posting your content. Knowing the exact formula is difficult, but you can actually do research on your own to see what brings more return visitors and what brings in more new readers.
Try adding the same type of content, but vary the frequency of when you post content; if you normally post once a week, try twice a week. Then check your traffic stats and see if adding extra posts make a difference to return visitors. You can also try varying the length of the each post and see if your readers prefer longer or shorter posts. Some times it is not how often, but how much you pack into the post that generates more buzz about your blog.
So, if you really want to know how to increase traffic to your blog, all you have to do is be willing to put a little effort and do the research.