After you save your post, the Permalink below the title shows the potential URL for the post, as long as you have permalinks enabled. (To enable permalinks, go to Settings > Permalinks.) The URL is generated from your title. In previous versions of WordPress, this was referred to as the “page-slug.” The commas, quotes, apostrophes, and other non-HTML favorable characters are changed and a dash is put between each word. If your title is “My Site – Here’s Lookin’ at You, Kid”, it will be cleaned up to be “my-site-heres-lookin-at-you-kid” as the title. You can manually change this, maybe shortening it to “my-site-lookin-at-you-kid”.
Allows you to save your post as a draft / pending review rather than immediately publishing it. To return to your drafts later, visit Posts – Edit in the menu bar, then select your post from the list.
Publishes your post on the site. You can edit the time when the post is published by clicking the Edit link above the Publish button and specifying the time you want the post to be published. By default, at the time the post is first auto-saved, that will be the date and time of the post within the database.
Refers to micro-categories for your blog, similar to including index entries for a page. Posts with similar tags are linked together when a user clicks one of the tags. Tags have to be enabled with the right code in your theme for them to appear in your post. Add new tags to the post by typing the tag into the box and clicking “Add”.