This study started from the purpose of analyzing communication in the virtual world and trying to adjust it to the classroom. Electronic communication is defined as a communication, functioned by internet, new media, such as smart phones. Until now, it has been natural that the communication of the virtual world has been accessed though the computer, therefore, previous studies have been based on computer-mediated communication(CMC). The theory of this study is also based on CMC, however, it limits its range only to the writing on internet of Korean learners. This study gives various examples of Korean learners' writings up to electronic communication service(ECS), and arranged it according to the topics of writings in each media of Korean learners. I hope this study will be a foundation for the analysis of electronic communication of Korean learners for future studies.(Hankuk University of Foreign Studies)