Bloggers must make reading our blog easy! It's a rule of thumb that blog posts must stay fairly short to maintain the interest of the reader (I like to stay less than 500 words...or try to). Most folks have enough reading to do for work or school that in their free time they prefer small snippets. As the storytellers it is important for us to not only break up the story, but to set up our blogs so that our readers can find the different parts. Hence the need for the wonderful link back.
Note in my example above, that I included the idea that there was a part I to my story in the very first sentence and I created a link back to the first installment. Once I publish the third installment I will create a link back on all pages that relate to the story so my readers can easily locate each part. I have seen other bloggers create a list of the installments at the very beginning of their post.
Adding links back to previous or related posts is such a simple concept, but it is one that can easily be forgotten. Take a moment to do it and make reading your blog easy for your readers!