you will put your url on description - text links
on video watermark - i think social media

They are definitely social media.

Social, but you can always ask your affiliate manager to make sure. Some networks may have different feelings on YouTube and other sites. It never hurts to ask.

of course it is social media...

I vote them Social Media as well.

Yes, normally its social. It may be various from network to network. You best clear it with your AM at the network you are using.

Social Media offcourse, but if you will use this traffic source you need to see with your AM what offers could you use.

Cheers

Another vote for social media, but as always this could vary network by network. Your best asking your AM at your specific networks to be sure

social media in my opinion

social media +1