I spent a good deal of time working this method awhile back. That was before the update. Now... I don't see EZA being a good option because it has crap rankings across the board.
If you look through the SERPS, you'll see these sites doing well:
-Squidoo
-Ehow.com (not sure if you can publish here)
-Buzzle.com
-Hubpages.com
But sites like EZA, articlesbase, goarticles, etc... are not showing up when I do searches.
What's weird is that you don't hear very many people talking about article marketing anymore... well at least I don't. I have a friend who makes money solely with article marketing, but he is the only one that I still know who is doing it.