I have a good niche website in relation to one aspect of UK law. I've been running the site for a few years now and get approximately 1700 hits a day of really good quality traffic. I don't sell any advertising on the site, but lately I've begun to wonder what it would be worth if I did. For instance, there are quite a few lawyers in the UK who specialise in this particular subject of law. The cost of the keywords they pay to get such traffic is insane. I'm certain that not only could I send them regular high quality traffic with a banner ad, I could provide them with an even higher quality traffic via e-mail referrals. I routinely have to deal with people's problems in this field via e-mail and often, when I know they have a claim, I tell them to seek a lawyer. As I don't endorse any lawyers or even mention them on my site, I never give anyone the name of a lawyer to contact. I often have e-mails from people asking me if I know of a good lawyer. I reply telling them I'm not sure if there is such a thing as a good lawyer. Lately I'm realising that so many of my readers could greatly benefit from an adverts on my site pointing directly to a highly recommended law firm. So I've drafted a very professional e-mail and sent it to the first firm on my list who I think would be most appropriate. I have offered to show my stats and design the banner for them. The problem is though, I didn't give them any indication of pricing for the banner as I have no idea what it would be worth. How do I even begin to calculate what the cost of the banner would be worth to a firm of lawyers. Do I just take the Google price on adwords for that niche and start from there? Should I charge them a monthly fee or a six monthly fee? And should I only offer the banner to one firm of lawyers and none other? Any advice would be gratefully appreciated.