Writing effective articles for your blog then advertising them through submitting it to article directories is one way of article marketing. That's a great technique to do first. Considering your blog is about SEO and all that matters to SEO, then you are going to write an article about SEO Techniques to be submitted to article directories. However, make sure that the article you have written to be submitted to various directories should not be found in your blog. You can then put a link to your blog in the author's resource box - letting the readers recognize your expertise as well as giving them access to view your blog site or website (which is of course related to the topic of the article which is SEO). In that way, the more readers read your article in article directories, the greater the possibility that it could drive traffic to your site. Consider submitting your articles to high PR article directories. Then after gaining the attention you want, don't forget to submit to low PR directories too - as this could add more exposure and possible backlinks.