By looking into the characteristics of internet communication, we analyze some representative definitions of traditional wordofmouth and internet word-of-mouth and compared the differences between them. We found that not all internet communications are new types of word-of-mouth; some could be called internet word-of-mouth with some similar characteristics with traditional wordofmouth, while others should be known as word-of-mouse, which has much more new characteristics compared with the traditional one. Furthermore, we indicate that internet word-of-mouth and word-of-mouse are two endpoints of the continuum of diverse communications on the internet and there would be many other formats of internet communications in between.