http://online.wsj.com/news/article_email/amazon-preps-a-challenge-to-googles-ad-business-1408747979 A few thoughts: Disable all possible sharing/history options for your Amazon account and be on the lookout for any other opt-out opportunities Considering limiting what things you purchase from Amazon. Consider researching products at other sites with no links to Amazon. Block third-party requests to Amazon hosts when visiting other sites. Watch for first-party looking hosts resolving to Amazon IP Addresses. Block all persistent storage mechanisms for Amazon. Only allow first party session cookies [while you are placing an order]. Take steps to protect against any client IP Address based tracking mechanisms. Keep your public IP Address changing and make use of anonymization proxies/networks Avoid apps and app platforms that prevent defensive steps, that send an "advertising ID" and/or WiFi based geolocation, etc.