How can we vote on something based on the vague and unexplained question you asked.
Are you asking if the programs/ebooks/howtovideos being sold about how to make money with google are worth it?
Or
Are you asking if google actually pays a site owner for displaying google adsense ads?
The answer varies with the question but the question must contain more details then you have provided to provide a answer with any degree of truth.
The facts are as follows:
The people selling information about making money with Google are selling you information that is available for free just by searching on Google.
Google does pay site owners for displaying adsense ads on a site as long as the site does not violate Google's Terms of Service.