If you are just getting started with bum marketing, you should ivnest more time into your keyword research.
Try to find topics that get at least 100 daily views, with a BIG MAXIMUM of 10,000 results on google when using the quotes "". You should even aim for a maximum of 5000 or even 1000 to make sure you rank #1.
Then you want to submit your site and articles to the social bookmarks with THAT SAME keyword used in the article. Use onlywire. It's boring to register, but once it's done, you get submitted to over 20 directories with only a few clicks.
Traffic won't just flow like crazy because you used ezine.
But add backlinks to your article/site, and your ezine will rank better, longer, generating more traffic and consequently more sales.
Once in a while, you will make an article that will rank and get visited by hundreds within a few days, but don't rely just on this.
Also.. don't wait for your article to get approved to write the next one. A HUGE mistake that many people do.. Just keep writing and you'll get better, believe me.