In this article, we introduce the "sense of virtual community" construct and explore the factors that are expected to affect it. We also examine the moderating effect of the virtual community origin. By analyzing 172 responses, we found that the sense of virtual community is affected by the virtual community characteristics such as (1) leaders enthusiasm, (2) perceived similarity, (3) off-line activities, and (4) playfulness. From the moderated regression analysis, we also found that the virtual community origin moderates the relationship between virtual community characteristics and sense of virtual community.