I have a blog, and I'm trying to make it into an authority site on my topic. I'm going to use article marketing as one of my traffic techniques but I need to know something before I proceed. If I write an article for the article directories pointing to my blog, can I place that same article as a post on my blog. Will google see that as duplicate content and slam me for that. Or should I play it safe and write different articles for the directories and my blog. Any feedback will be appreciated.