This book will address the gaps of current studies: (1) Existing study conclusions around eWOM and consumer behaviors are not perfect. At present, many studies emphasize the positive effect of eWOM on consumer behaviors, but there are still many different views around the influencing mechanism; there is, in particular, a lack of study on the influencing mechanisms in different cultures; partly the result of different product types and customer groups. This study uses personal consumer electronics as its subject: specifically, the tablet computer. In this way, the study will enable comparability in the assessment of eWOM in different countries and the potential differences in the customers in the two countries. In addition, this study also discusses the overall trend of WOM communication among customers and compares its impact on both countries. (2) Insufficient research on the impact of Internet multi-media WOM marketing. This study believes that the content of online reviews is not the only standard that influences customers' choices. The manner and methods of information delivery and presentation also shape customers’ opinions. This study explores the means of giving an opinion about a personal electronic product and their diversity and influence on different customers in a diversified information context. (3) Insufficient research on consumer trust. Albeit key to successful marketing, consumer trust has not been sufficiently studied for its role in online marketing. Consumer trust consists of different dimensions. Some recognition at various sub-levels of a product helps establish a consumer’s trust in the product’s online reputation. This study analyzes the relationship between eWOM marketing and consumer trust at each sub-level. It further explores the two dimensions of trust, namely, competence-based trust and integrity-based trust, and their effects on purchase intention and WOM communication.