As communication by the electronic mail spreads and becomes increasingly common, more and more people are taking the advantage of its flexibility and simplicity for communicating social identity and cultural matters. This chapter, focuses on how Nigerian users of the electronic mails, apply the medium for expressing their identity through discursive means. Data comprises 150 personal emails written and sent between 2002 and 2009 in Lagos and Ota regions of Nigeria by individual email writers, comprising youths and adults from a university community and the Nigerian civil service. Applying socio-linguistic
approach and computer-mediated discourse analysis, the study shows that the most common discursive means of expressing the Nigerian identity are greeting forms and modes of address; religious discursive practices and assertions of native personal names. The data also show evidences of Nigerian English in the email messages
