Rethinking Location Sharing: Exploring the Implications of
Social-Driven vs. Purpose-Driven Location Sharing.

The popularity of micro-blogging has made general-purpose information
sharing a pervasive phenomenon. This trend is now impacting location
sharing applications (LSAs) such that users are sharing their location
data with a much wider and more diverse audience. In this paper, we
describe this as social-driven sharing, distinguishing it from past
examples of what we refer to as purpose-driven location sharing. We
explore the differences between these two types of sharing by
conducting a comparative two-week study with nine participants. We
found significant differences in terms of users' decisions about what
location information to share, their privacy concerns, and how
privacy-preserving their disclosures were. Based on these results, we
provide design implications for future LSAs.