تماشای ویدئو Markiplier About starting a YouTube channel از آی-ویدئو
Famous gaming YouTuber Markiplier is giving an advice on how to succeed in YouTube business.
Markiplier's channel: http://bit.ly/Markiplier
My channels: http://www.youtube.com/channel/UCQRw6...
http://www.youtube.com/user/C0nn0rify