After you have finished writing your articles, added them to your blog and submitted them to the directories, you might as well get maximum exposure from them - so here are a few other promo methods:
www.EBay.com - You can take a pack of 5, 10, or 15 articles that are all on a similar topic that you have written about and turn them into a PDF ebook with affiliate links embedded. Then list it on eBay and sell it. If you want to go a step further, you can sell it with either master resell rights or even private label rights.
www.USAFreeAds.com - This is a free classified ad site that a lot of people use to put ads on which can also help to get good Google rankings. You need to target keywords that have at least 500 searches and less than 1,000 results.
www.Squidoo.com - You can use Squidoo to create a lens for each product you promote and then send people directly to the affiliate sales page or even to your blog (see below) for reviews and additional info, just as you would with your blog
www.MySpace.com - You can create a MySpace profile for each product that you wish to promote.
www.CraigsList.com - You can also post one (no more or it may be removed) ad to CraigsList to get additional traffic / sales.
The above methods complement effective article marketing after you have completed the 30 day program. These additional free web 2.0 sites will give you additional traffic, multiplying your article writing results.