Location-based Services (LBS) are widespread nowadays and with the rise of smartphones and other mobile-devices they are expected to be used in ever more applications by ever more users. There are clear opportunities this technology provides, nevertheless there are always privacy concerns when it comes to the identification of an individual’s location. This paper provides an overview of user privacy risks regarding LBS. Based on a privacy taxonomy, it shows the gaps that exist in the literature, which could be of interest in further research to gain an even better understanding of privacy concerns of users and as a result their willingness to use LBS.