As the rapid growth of social network sites (SNS) is taking up the role of traditional mass-media, more and more studies focus on the relation between SNS and social capital. These studies, however, typically deal with a specific site such as Facebook. In this study, we aim to so investigate whether different SNS with different characteristics have different impacts on participatory social capital. At least in Korea, SNS are categorized into five types (community, mini-homepage, blog, micro-blog, and profile-based service), and participatory social capital is specified by three types (such as off-line political participation, on-line political participation, civic engagement). Our regression analysis shows that SNS which are more open and focused on information sharing contribute more to participatory social capital.