In this paper we present the system design and rational for a novel activity-oriented social networking site called Dig-Event. This system extends our previous work on event based consumer mashups and is inspired by research on popular social network applications. Dig-Event provides an open, social space for users to share events and discover the activity of mutual interest among social contacts like schoolmates, families, friends and colleagues. It allows users to share their activities to the customized social circle, conduct events by selecting activity-based gadgets, and socialize around them. The features of event recommendation and integration with existing social networks further boost the event socialization experience