Article marketing should only be a small portion of your back link building strategy as well and all back link building should be slow and as natural looking as well. As best as you can get it. People hate to hear that it takes a good 6 months to a year to get a site seeded real well and producing a reasonable income. The old days of knocking out 1000 directories and submitting one article to 50 article directories in the first week is over.
Although Matt says they frown on article marketing, it can still be effective if done right. I have many sites that are proof of this. If you do it like 80% of the masses try to do, it will not help one bit. Take your time, spin them good, rotate the anchor text and pages they link to and submit over time.
Also be working on building other as close as natural backlink methods too. Not just through articles.