Posts are posts, and pages are posts, and CPTs are also. A plugin'll add them too, shouldn't you?
It's easy to understand what a post is when talking about blogs, but in WordPress, posts are only one kind of post. Confused?
In our August 21 meetup, we are going to have Kevin Roberts show us how (and why) WordPress stores all the bits of content we give it as posts so that it can hand them back to us in nicely formatted web pages.
Plus, we are going to see how we can create our own Custom Post Types for those days when the WordPress default is just not good enough to capture the data you want to work with. And, we'll see some plugins that make this task easier!