In order to send out coupons (10%) to customers each month, I intend to publish a password (= coupon code) protected duplicate shopping cart on a different directory of my web site (e.g., www.neuton.net/discounts instead of www.neuton.net/shop). The problem is that I don't want search engines to show the discounted product (right next to the regular priced product).

Question: Is there a way to make the discounted cart invisible to search engines (negative SEO)?

http://antezeta.com/news/avoid-search-engine-indexing