How is DriveTribe monetised?

[HybridAero]

I'm really impressed with DriveTribe videos and the general quality of content being put out. But it seems to me that their only revenue stream is YouTube advertising. They don't have a sufficient audience to pay even one member of staff's wages, from what I can see; so how are they making it pay and funding such great videos? They also seem to have poached lots of Evo staff.

[HybridAero]

The content I was referring to is this type of video:

https://www.youtube.com/watch?v=8uZXuHEXYpc

Superb quality.

Couple of guys poached from Evo.