Which method is better for article marketing? If I have unique KW dense articles should I add them to my site as content and digg and stumble it. Or should I submit it to a bunch of free article directories and get some backlinks. I've thought about it and would doing both methods be just as good if not better? I've read that google frowns upon duplicate content, but if you submit the article to a directory don't other people publish the article producing duplicate content? So if they do it you might as well have your own content on your own site as well correct?