We send out email newsletters to our members, the format looks like a website and we even have banner ads in it. Is it ok to add adsense here?
i guess the problem would be that the adsense bot won't be able to visit the page, but what if the html newsletter i have was just a frame and the contents were really our website? won't that be ok? since we are just displaying in our member's email client the contents of our site in an frame.