Here is an infographic showing how much the world of video gaming has changed with some cool gaming stats added in too, sections include facts about the gaming industry, competitive gaming and demographics.
Atari Teenage Riot: The Inside Story Of Pong And The Video Game Industry's Big Bang
http://www.nydailynews.com/news/politics/don-blame-video-game-industry-mass-shootings-expert-article-1.1297539 Violent video games being blamed for mass murders. It seems far from the truth, as the article depicts. There are other psychological reasons for violence and although mass media may play a role it seems like other reasons, such as social awkwardness, isolation and family background may play a larger role.