The Internet has changed the consumption habits such as many other aspects of community life. Today, online comments of the consumers about the products, services and brands which they experienced is a powerful influencer on the purchasing behavior of other consumers, even they don’t know them personally. It is believed that this information sharing mechanism, which commonly termed as “eWOM” in the academic literature, is helpful for the consumers to be more conscious and rational by providing credible information about products and services. This new phenomenon, which saves consumers from being a passive member of the classical marketing communication that is under the monopoly of company messages, is operating in favor of the consumer in general. However, eWOM's control is more difficult than other marketing communication channels inherently. Although it is as effective as the other marketing channels, because of being still very new and deprived of legal control, making eWOM a communication channel which is open to manipulation and which can mislead the consumer and can cause various damages. In this study, a literature review was conducted to examine the impact capacity, credibility, misleading and legal requirements of eWOM and some legal arrangements were proposed.