Then there are some of the new rules:
1. You must have at least 50 words of text per amazon/product capsule.
2. No full width product capsules can appear at the very top of your hub.
3. Don't be overly promotional (for instance, don't use more than 2 amazon capsules per hub)
4. Use proper grammar and check your spelling.
And then it always pays to read the Google Adsense Terms of Service.