I'm not sure if it will cause any damage SEO wise, but it will definitely not provide much, if any, value. You can try using Google's original source meta tags here:
http://support.google.com/news/publisher/bin/answer.py?hl=en&answer=191283
But the original source tag is still experimental.You could try turning some of the articles into whitepapers and having them available for downloadable on your site. Just make sure to block the PDFs with your robot.txt file. Or have people sign up to your mailing list and then e-mail them the whitepaper.