WordPress CMS, without modification, has two types of content – pages and posts.
The only major technical difference between pages and posts is that, by default, pages are not put out on RSS but posts are. All of the other differences are theoretic – common practice, but not real technical constraints.
A page is a primary part of your website. They are front and center, and don’t change often. Pages that are common to most websites are “about”, “contact”, or “services” pages.
Sometimes, pages can be restricted to registered users, or users with the link. Often, though, they are available to every user.
For most sites that make posts, the post (information) can be thought of as the “product” of the site. Synonyms to “post” could be “article”, “update”, or “blurb”.
You might post about an upcoming concert. Or you might post a tutorial for how to find sold-out-tickets for good prices. Some posts are only significant until a certain time has passed (the concert is over). These posts may go in existing, but loose importance. Other posts remain valuable indefinitely, like a review a bands performance.
Posts do not have a direct link to the navigation. They are found through “categories” and “tags” or searches on your website.
Pages and Posts In Use
Check out birthanarchy.com or stephanieevergreen.com. Birth Anarchy uses pages and posts. All posts stream on the blog page. On Stephanie’s page, posts stream either to the blog page or the upcoming events page depending on what categories Stephanie uses.