Who do you trust when it comes to choosing a product or service? People you know top the list, but the second most-trusted source is online consumer ratings. Target is a great example of a retailer who lets buyers rate products and post their comments, good or bad, online. It may seem counterintuitive, but the negative comments tend to lend more authenticity to all the ratings, so consumers trust them more — and that boosts online sales. That feedback also helps Target’s buyers know which products are well-received. How can you let customers rate your products or services?