Computer-mediated communication (CMC) is person-to-person communication that takes place via a range of computer-supported transmission technologies that enable both synchronous real-time and asynchronous interaction across different modalities. Thus, CMC encompasses such technologies as e-mail and text chat, blogs, vlogs (video blogs), bulletin boards and voice boards, and Web sites and wikis (a series of interconnected Web pages). Within language learning contexts, certain types of CMC are more prevalent, and accordingly research on language development that occurs during and through CMC reflects this tendency.