Currently on my website, I am only using google adsense for ads. I was doing some research, and I found another service I would like to add to my website. However, I do not want to add it on without making sure I am not breaking any rules. It is the Coupons.com affiliate program.. https://brandcaster.coupons.com/publisher/ Please let me know!
At a guess yes I think this would be okay (as it's not like your running yahoo type ads) but if in doubt email Google Dickie
yes you can. just remember content on your site includes ads,so don't pick any ads that would violate the TOS.
Yes you can use any other ad network along with AdSense but make sure ads from both networks appears different from each other.