First you have to know that old chats not have video communication: in the chatroulette you can use your web cam with audio plus video communication that is so much high technology; of you course you need also a Internet connection that help you transfer data to others people and get data from them!
Hey look this is called video chat is not so much new!!
Ok Ok the Chatroulette is innovative because you can video chat with random people! It mean that you never know who is the next person you will see in your monitor: where he came from, age, sex, how he/she looks etc.
This is the most interesting thing of a random video chat as Chatroulette; this chat is also super simple to use: just click on start to start see new people in web cam or stop when you wanna stop the randoms.
Before you start use those chatroulette you have to remember to respect policies of those chat: you must respect the others, not be aggressive, racist, you don't must show your naked body or all can make bad people in other web cam!
The true chatroulette is have fun with others! Then use your fantasy and you will have fun days with this new chat!
The last think: in the chatroulette for now you will find more men than women: if you wanna see some of them you have to respect all policies and have patience! (This is the big recommendation i can give you!)