Search Ads. These ads are more directed by the publisher (you). Instead of just letting Amazon analyze your post and select ads for you, you put in specific search terms that restrict what the viewer might see. When you create one of these ads, you select a "Default Search Category" (mine are usually "Kitchen and Dining" or "Grocery and Gourmet Food".) Then you select a "Default Search Term" which can be the actual item you're wanting to have your viewers see. In my case, it might be "Baking Pans". As soon as you hit enter, you'll see the sample ad items appear in the window to the right. I use these a lot, and I often place them right after a paragraph in my post where I call for the item being searched.