Actually, seems more like pitching my favorite book or movie to friends when they're over for dinner--which I do already. If I have a blog where I discuss fantasy novels, it almost seems like a courtesy to readers to link them to where they can buy the products I am talking about. There are a lot of times when I find myself linking people to Amazon product pages even though I'm not part of the affiliate program. (When a friend asks me what earbuds he should buy, giving him a link seems a lot more reliable than giving him a product name like "AKG K271 MK II" and trusting that the message won't get lost in translation as he retypes it into his search bar.)