The ads are purchased through Google. They have standards and rules. Now days ads are served based on information in your cookie about sites you visit so they can tailor ads for you. So if you are getting adult ads... clear your cookies and quit visiting adult sites. (lol)
Otherwise there should not be any adult ads. I have them turned off so if your cookie suggests adult it still will not show them. If you see one click through and give me the URL address and I will block it. (edit: I just blocked an Asian dating site: idateasia.com)
As far as all ads go... Any ad you are curious about click on it and see what they have for you. Be careful, they have their own privacy policy so don't give out email addresses unless you want to be in their marketing churn.
If anyone wants to purchase the top of page ad click the "advertise here" link in the bottom right corner of the ad and you can purchase the ad space exclusively.
woof,woof
stevedawg
For winning the Natty give every Dawg a bone AND prime rib steak.