Articles or research over esports and its affect on the game industry.

I am doing a research paper over Esports and how its growth will affect the video game industry, specifically in North America. If anyone has read any interesting or informative articles please share them with me. I have found many good write ups, but nothing that really looks into Esports recent growth in NA and how that may affect developers, publishers, etc... Thanks bros, and glhf! I will post my finished paper up for anyone to read, if they would like.