There are literally thousands of article directories to submit your articles to. And a beginner would think that the best thing to do is to submit your site to 100 of them. After all, the more sites, the better, right? Not quite. Google will penalise articles that are the same as others (called duplicate content), so it won’t endear us to Google. Moreover, many article site owners don’t like you submitting duplicate content. That said, you can still do it for some extra traffic, it’s just that Google won’t rank you well for those articles (but it might provide an extra trickle of content).