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I agree with the two responses you've received already. If you have good content, you'll want to put it on landing pages on your site. then seek to find (some will find you) sites that will link to your good content/landing pages. This is a much better way of doing things then seeking sites to submit your content to. Duplicate content issues and Panda really make this type of process outdated. I a firm believer in keeping your good content on site.