I have got several areas of my website set up to house advertising, which currently has Google Adsense ads in it. I am looking to sell these spots for a fixed monthly/weekly price and wondered where the best place to advertise their availability is? Is there a website that allows me to list them? What is the best way to sell my ad space?
I am considering similar issues, what about contacting companies that would be interested in your space? My question is how you place a value on the space. But that is for another thread.
The best place to sell is totally depend on your site attractiveness. For me i normally sell it at buysellads.
Try to sell it at Buysellads or put some banners on your site so people can contact you for some advertising space just like tuksdrr said.
You should visit DP BST section - advertising This is one of the best place for you to sell the advertising space
keep using adsense. if you have a high pr site have a section offering a fixed advert for X amount of money.