These links simple reference the root of the website, adding on the short title (some blogging software calls it a "slug") for the post. You can also use numeric values here, representing the post ID. I like to have a lookup table in the Application scope that I can use to lookup a Post ID via slug, UUID, numeric value, or whatever the site uses. That way all the URLs will work. Just perform a lookup on the ID, or slug in the URL on the post page, and display the content.