Ok, a this is a bit redundent but the google adsense ads for google products, what are they, do they display like PS ads or do they pay. If they pay how? would it be a refferal for the product advertised or do you get CPC CPM with them? Any Ideas, I couldn't find anything on google adsense help for these ads? Thanks

What I'm talking about
Normal Adsense Set up Code blocks that display an ad for google rather than for an adwords advertiser.
Such As a google ad for:
Google Search Box
Google Photo Software
etc... Google products with a displayed google domain such as www.google.com/adsense

I am asking because such ads are showing up on my pages, where I also have a refferal link. If these ads are CPC or CPM I don't want to loose the potential $100 bucks I could make because they didn't click on actual refferal ad.