I have seen many newbie members asking if they should be filling in the information fields under the WordPress editor window. For the beginner I normally advise to leave them blank. But for those who are more seasoned and not afraid to experiment I tell them to only type up the Meta Description. More on this in just a bit.
WHAT ARE THE META TAGS
As you can see in the image above the Meta Tags in the All In One SEO Pack area under the editor window contains a snippet of how your page or post will look like in the Google Search. This snippet contains the Title at the top (in Blue), then the Permalink (in Green), and then the Description.
Other than the Permalink, only the Title and Description are Meta Tags. You can also see these Meta Tag fields below the Preview Snippet. The one Meta Tag that you should never fill in at all is the Keyword Meta Tag. As you can see it is not part of the Snippet and NONE of the search engines use the Keyword Meta Tag. More about this on the next page.
NEXT UP = Which Meta Tags should you fill out and why