Create a Blog
Your site doesn't 'need' to have a blog. You can skip this page if you don't want to have one.
To create a blog for your site, go to the Pages tab of the editor, click the + Plus button and select the Blog Page option.
This will add the blog to your list of pages. Give the blog a name (if you want to call it something other than "Blog").
A new blog starts with a sidebar with some default content that you can easily change, and also gives you the option to add a New Post.
To create a new post for your blog, use that New Post button.
Your blog post has a title and a content area. The title should generally be short - no more than a sentence long or so.
Adding content to a blog post works the same way as adding content to a regular page - just drag elements into the post and edit them to add content.
Once you've added content you can categorize the post using Tags, found in the Post Options section - these tagged categories will appear on your blog sidebar, making it easier for visitors to your blog to find posts that cover certain topics. Categories can be whatever you like and it isn't necessary to use them.
Learn more about Tags and Categories here.
When you're done you can Publish the post to your live site (which will make it instantly available for visitors) or Save to Drafts to edit / publish it later.
If you save the post as a draft, it'll be accessible to you through a drafts area at the top of the blog page from within the editor (along with any other drafts you've saved). Just click the link to the post from this drafts area to edit it further and Save / Publish.
Every new post you Publish will appear at the very top of the page, pushing older posts further down. After you've added seven or eight posts to the page, older posts will be moved off the main page to still accessible archive pages.
Now that you've learned the basics, let's look at the next steps.