Children are being turned into gamblers by Facebook with an explosion of Las Vegas-style casino games on the social networking site, it has been alleged.
Youngsters are using 'virtual coins' to simulate the thrill of hitting the jackpot with slot machine and roulette games on their home computers and mobile phones, the Daily Mail reported.
There are now hundreds of virtual slot machine and poker games on Facebook, including Jackpotjoy, Slotomania and DoubleDownCasino.
Zynga, which accounts for 12 per cent of all Facebook's revenues due to its popular games such as FarmVille, launched Zynga Slots in the UK last month.
But addiction experts have warned the games encourage teenagers to think gambling is harmless fun.