I Have 20 Unique Articles - How Do I Get the Most Out of Them for SEO Purposes?

In the past week, I have conducted keyword research, created a website and added 15 articles to it. I have also social bookmarked most of these pages (only 2 pages each day). The rest of my time has been spent on writing a further 20 articles. My question is how can I get the most out of these articles for SEO purposes?

My plan is to:

create 5 accounts on web 2.0 sites, and then add 2 articles to each with a link leading to my homepage.

submit 5 articles to PR sites (one article per site)

submit 5 articles to 5 different article directories (one article per directory)

In addition, I will post 10-15 blog comments and create 10-15 profile links.

I'm sure that there is a better method out there, but I'm not sure what it is. Can anyone tell me what the best course of action to follow is?

Btw, I planning to write more articles in the following weeks, so this will not be the end of my backlinking efforts. However, much of my focus will be on creating a new website, which I want to do as soon as possible.