The construction and sharing of emotions is one of the main functions ofcomputer-mediated communication. This article summarizes linguistic findingson the communication of emotions and emotional communication in informationand communication technologies (ICT) and computer-mediated communication(CMC).First, the main features and functions of CMC in general are explored,addressing the lack of nonverbal and paralinguistic cues in CMC and itsimplications for emotional communication, popular deviations from standardlanguage, emoticons, communicative norms and multimodal aspects. A discussionof selected communicative genres (e.g. blogs) discloses different patternsof emotionality. Finally, three aspects of relationships in an online environmentare referenced: managing online identities (e.g. through avatars), managingamicable and romantic relationships, and managing virtual communities.