I have a site ranking top 3 for a certain keyword. Among the top 3 are sites belonging to 2 big manufacturers and my site. I noticed that there's a very big manufacturer (currently no where to be found for the keyword) always appearing at the top of the adwords ads, so I guess they must be bidding quite a lot for the keyword. Since they are big and have the money to spend, and 2 of their competitors are already ranking in the top 3, I feel like offering them to advertise on my site or rent my site or whatever. Please teach me how to do it and make the most money out of it. Thanks in advance.