Do you find that ads rotated onto a preview page, for example, really help? When I use a preview page or a separate comment page that doesn’t include post content, I’m so focused on what I’m writing that I doubt I’d ever notice an ad.
For most sites that run ads, they’re a mixed blessing (or, curse, depending on perspective). For content sites ads pay the freight, which is a good thing. Unfortunately, too many online ads these days pay on clicks rather than impressions. I manage some sites with as many as 10 ads per page, though I see plenty of sites with far more. And, I have some sites with as few as a single ad on a page. The average seems to be four or five, which, for me is tolerable. As to the Comments and Previews pages, some clients want as many ads showing as possible, others don’t; in some cases I re-use code which allows ads to be displayed as they would on entry pages. I suspect the click through rate of ads on Comments and Preview pages is substantially less than other pages.
(Full disclosure: I try very hard never to notice ads anyway, unless they feature pretty girls. Otherwise, I might leaf through a print advertising circular if I’m considering a purchase, but online I tend to search for information about something to buy, rather than look at incidental advertising.).
I hear you. There’s little question that soft porn ads or mildly suggestive ads featuring female faces and bodies sells. I manage half a dozen OpenX ad server setups, too, and have done numerous tests which affirm that ‘sex sells.’ Creative an attractive, informative, stylish ad and rotate it with a sexy ad and see which one gets the most click through hits. It’s seldom much of a contest.