You can't open up adsense in a new window.
Advertising, as has been pointed out, is apparently an inherent right on the web. I advertise. Advertising revenue makes up a good chunk of what comes in each month and I'm glad to have it. Some months more gladder than others.
Will advertising change the overall member contribution? No. Will advertising lessen the quality of posts WW members have come to expect. No.
I don't see tasteful advertising impacting this forum in any real way. The mods won't quit in protest and the members will still keep coming here. The only difference will be that the owner of this site will finally be getting some just deserts.