Say that I have a pack of completed articles. Would I only post them for sale on one site/forum and wait until I know that no one is interested there and the post elsewhere, continuing on in the same fashion? Or, can I post to several places at once and then just close all offers once the articles sell? Thanks for informing me of the proper protocol.
If your article has full rights to only one buyer, you can sell it anywhere until the first one purchased it. Then, if it is purchased you have no right to sell it again and you must close or update your thread or ad that your articles are sold already to one buyer with full exclusive rights. However, if you wish to sell it to many, mark your articles as Private Label Rights which you can sell articles as many as you want, but a cheaper price than the original.