The proper choice of keywords can bring you huge traffic. That is why every post should have proper keywords in all legal spots on the blog. In meta title, meta description and meta keywords.
Yes, meta data is not a top priority for Google any longer, but these meta keywords will later on (after being pinged by the ping services) will turn into tags - and tag power is really great. Ping services create separate pages for each of the tags, these pages quite quickly are indexed by search engines and receive nice Google PR with time, and your post will be published on this page as an example of posts for this tag.
#2. SEO sexy URLs.
SEO sexy URLs means that you have the necessary keywords in the URL of your posts. Quality blog solutions (that already have the guts of SEO blogging software integrated inside) will give you a change to automatically add the title of your post into the URL of this post. As you are using the keywords in the title, they will get to the URL as well.
And though keywords in URLs are not the priority for Google's algo, wasting such a chance is a big mistake.
