http://www.dvgiochi.com/
Site of Italian manufacturer and publisher of BANG!
https://www.albi.cz/uvod/
Czech distributor of this card game
https://emilianosciarra.it/
Site of the author of BANG!
http://www.paluba.cz/
One the places in Prague, where you can play BANG!.
https://boardgamegeek.com/boardgame/3955/bang
American site about cards and boards games, second place about BANG!.
http://bangcardgame.blogspot.com/
Blog for modding.