The e-character education (e-CE) approach refers to systems of ethics education that pertain specifically to cyberspace. This exploratory study used a survey to collect 2495 teachers' responses regarding virtues important to e-CE. Furthermore, in order to identify the teaching concerns associated with these most important virtues, this study used two focus groups that involved interviews with 16 teachers and Internet experts, as well as a content analysis of 92 posts from 72 teachers in an online course regarding ethical behavior in the context of Internet activity. The results of this study show that e-CE virtues considered important by teachers include law abidance, respect, self-discipline and sharing. Teaching-related concerns of these virtues have also been discussed. The results serve as a foundation and guide for the promotion of e-CE curriculum development and implementation.