Word-of-mouth as a marketing tool? I was skeptical. After all, millions of dollars are spent on 30-second spot during the Superbowl. Oprah gave away a bunch of cars on her show one day. Magazine ads, TV commericals, rebates, coupons - that's what marketing is, not people talking about the coffee at their local coffee house. Grapevine has me reconsidering my opinion. Valid points are made about the effectiveness of some of these huge promotions we've seen over the years, such as the Oprah car giveaway. The show got people taking but was it about the product? Since reading the book, I've paid a lot more attetion to conversations around me and I've been surprised how often references to products come up. Grapevine has me thinking that maybe we, as consumers, actually do have power to make changes in the marketplace. Even if you're not in sales or marketing, I recommend this book because it will change the way you think about advertising in general. If you are a marketer, it will make you consider the power of people's opinions.