Adsense on ghost sites ?

Ok found this on google support, so i guess it shoud be ok

Content guidelines

Publishers may not place AdSense code on pages with content that violates any of our content guidelines. Some examples include content that is adult, violent or advocating racial intolerance.
View full content policies.
Sites with Google ads may not include or link to:

Pornography, adult or mature content
Violent content
Content related to racial intolerance or advocacy against any individual, group or organisation
Excessive profanity
Hacking/cracking content
Gambling or casino-related content
Illicit drugs and drug paraphernalia content
Sales of beer or hard alcohol
Sales of tobacco or tobacco-related products
Sales of prescription drugs
Sales of weapons or ammunition (e.g. firearms, firearm components, fighting knives, stun guns)
Sales of products that are replicas or imitations of designer or other goods
Sales or distribution of coursework or student essays
Content regarding programs which compensate users for clicking ads or offers, performing searches, surfing websites or reading emails
Any other content that is illegal, promotes illegal activity or infringes on the legal rights of others

Ghost sites should be fine. If Adsense has a problem, try Chitika, AdDynamo, IntentClick, umm... Infolinks, what else? Ah, that should be more than enough backup options.