1. Ferrari E, Lessiter J, Freeman J (2011) Users and uses of multiplayer games and community activities. In: Proceedings NEM Summit, Turin
2. Online. http://www.cng-project.eu/ . Last accessed 29 Feb. 2016
3. Online. http://www.twitch.tv/ . Last accessed 29 Feb. 2016
4. Online. http://www.ustream.tv . Last accessed 29 Feb. 2016
5. Online. http://www.livestream.com/ . Last accessed 29 Feb. 2016