Old Articles

I have a variety of odds and ends 400-600 word articles that I sold on fiverr but I've pretty much quit doing that. They are all over the board and theoretically have been used at least once (may not pass copyscape anymore) any ideas if I can milk anymore money out of them?

You still have chance to sell them if they are original....if they are already published, then you should throw them to a dustbin

Better rewrite them so that they can pass CS and then sale them out.