This document discusses creating and considering user generated reviews. It notes that reviews disrupt the traditional path to purchase and are influential for consumers. There are two main types of reviews: professional reviews from a single entity that can be tracked, and user/consumer reviews from a crowd that may be biased. User reviews can build relevance and momentum through their numbers and natural language. They provide a full picture for consumers but come with responsibilities around moderation, fake reviews, and ensuring objectivity. In the end, both professional and user reviews have benefits and challenges to consider.