Um.....Yeah. How can you sell links on someone else's site ? Can I sell links from the comments that i leave on your site?
DP is a webmasters form, and community. It is here to help people make money. You Tube is owned by Google who is against link selling in every shape and form. If they find out, I am sure they will deactivate your account, ban you, and possibly any other Google accounts that you have including adsense, blogger, adwords, feedburner, and so on. Why don't you build up your own site and then sell links on something that you actually own.