I'd recommend using original articles, that aren't featured on your site, to avoid duplicate content. Usually those articles are spread across the web all over the place, so even though you may only submit the article to one source, it could lead to tons of pages across the web that feature duplicate content with the page on your site where you took the article from, if you don't write new articles.
You can cover the same general topic as an article from your site, but I'd try taking a different spin on it and writing something fresh for article directories.
__________________
Blackjack Strategy
|