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I noted that all Ads are the same despite different node content to view. Is it because they are all accessed by the base url (i.e. www.mydomain.com/?q=page_id), so they appear to google a single page.
Is each page SEO'd properly so that the content is outlined clearly?
Meaning each page has content specific title, meta tags, H1, H2, etc?
If this is a new site, it may take a few days for the ads to settle down.