How to Do Everything!
Wordpress, out of the box, is horrible in terms of SEO. There are all kinds of duplicate content issues, bad title structure, bad post name structure etc.
A few plugins and some modifications can quickly fix this SEO issue. A few I would recommend would include All In One Meta Tags, and Google Sitemap Generator.
In terms of altering postnames, under Presentation > Permalink Structure, set the link output option to custom, and enter /%postname%/. This will output your URL as the blog post title… a much better idea in terms of SEO. If you do this, be sure to install the Permalink Redirection plugin.
Hopefully this basic guide is helpful to the new bloggers out there.
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