You have a website but cant find a sponsor that sells on its traffic?

The past couple of months i must have tried about 15 different sponsors on one of my sites and not one of them is selling.

Do you folks think i should just park the domain name at Sedo and move on to something else or rise to the challenge and keep trying to find a sponsor thats going to work on the site?

What would/have you done in the same situation?

Regards,

Lee