WordPress offers a choice of creating Pages or Posts on your blog. People usually use Pages for material that’s more permanent and Posts for material that’s immediate or time-sensitive.

Pages
If you want to build a classic menu structure for your blog with clearly defined sections, like this site, you can use Pages. Every time you add a Page, you select the “parent” category.

Unlike Posts, Pages are not organized by date. You could add a new Page anytime and chage the order of the menu items.

You might run out of room to display menu headings. Many designs have room for only 6-7 page headings. Keep the headings shot, and consider making drop-down menus if you have sub-pages.

You can allow Comments on your Pages or you can turn them off. In that way they’re similar to Posts.

Posts

Posts arrange themselves in chronological order. Older posts get pushed down until they eventually go off the list and are automatically sent to Archives. You can set a limit for how many posts appear.

Posts don’t appear in menus. You can set up Categories on a separate page and have the Posts form a table of contents. Or you can show the titles of the most recent posts in a list on the sidebar.

If you activate the Links widget, your posts will automatically be archived by month.

Posts are dated. You can go through your posts and change the dates.

When you add a new Post, search engines are automatically “pinged” to let them know you have something new.

Posts automatically appear in RSS feeds but Pages don’t. If you want your visitors to follow an RSS feed, you need to write Posts not Pages. (Although you could always write a Post directing people to a Page.)