Recent scholarship on global online courses points to the need to examine the issue of social context in an online global learning environment. To explore global learners' cultural perspectives on the social climate of an online class, we first review the social presence theory--which can be used to examine the social climate in an online classroom, and explain factors that contribute to learners' social presence. Then we report findings of a survey conducted among a group of Chinese business students and discuss specific aspects of an online business communication class which might contribute to enhancing global learners' sense of social presence in an online environment. We conclude the study by explaining the present study's implications for delivering effective online business and technical communication courses with global learners and recommending strategies for increasing global audiences' social presence in an online class created by the instructor and the online community.