It's called "Chat-Roulette".  Your kids probably know what it's all about.  The premise is you just don't know who you will be chatting with.  Sound intriguing?  Sounds kinda scary to me.  Yes you will get your share of creeps, geeks and perverts but every so often normal comes up on your screen!  Little did Diana know her Chat Roulette session would have a romantic twist and go viral!