Reference.

Pros

http://www.rootsofaction.com/video-games-for-kids-more-good-than-bad-for-development/

http://everydaylife.globalpost.com/positive-effects-video-games-children-16317.html

http://www.psychologytoday.com/blog/ulterior-motives/201002/video-games-can-teach-positive-lessons-too

Cons

http://www.livestrong.com/article/278074-negative-effects-of-video-game-addiction/

http://psychcentral.com/news/2012/12/11/negative-effects-of-violent-video-games-may-build-over-time/48918.html

http://www.education.com/reference/article/negative-potential-video-games/

All websites cited on the 13/10/2014.