I thought of creating this thread a couple of weeks ago
I think there should be an active thread with this kind of information

I don't know much about it, but I think we should post things like this to figure out, what NOT to play online

I'll start  

Live roulette scam

https://www.youtube.com/watch?v=NN5a0-WBOxc

One is pretty obvious, but still reveals the dude knows what's the next card

Blackjack scam

https://www.youtube.com/watch?v=JoNc8gxvhaI

https://www.youtube.com/watch?v=HBNQK-0Yg5g

https://www.youtube.com/watch?v=l3-OssVlvgc