Hi, Currently, on my website I have installed both an articles and forums section. However, I worry about double content being posted on both ends. Also, trying to understand the difference between articles and forums and/or blogs. How should I setup my articles and forums? Should I keep the artictles as a section where information related to sports is posted and on the forums where trade rumors are posted and talked about? Trying to get ideas.

It depends what yo uwant ot do. What is the main aim of your site - figure this out then build your site with this objective in mind.

You can use a blog site to write articles, you can do anything you want - don't be limited by others perceptions of what an article, blog, etc is.

Though I would not use forums for posting articles, they convert ad clicks very poorly