I am an associate professor at Stockholm University, the Department of Computer and System Sciences where I am head of the ACT unit. I am also affiliated the Mobile Life Centre. I study location-based social media and more broadly issues within ubiquitous computing. My research combines studies of social media interaction with practices of cutting-edge technologies, in order to provide better knowledge of how to design for these new everyday practices. I am currently building up the LX Lab and looking for students who are interested in location-based media and location-based experiences such as interactive theater and performances. Feel free to contact me if you are interested in writing a bachelor- or masters project with me as supervisor.

At UCSD (2007-2011) I was the Principal Investigator on an NSF funded project: "Transforming Social Science Virtual Organizations". I was studying the diverse intellectual practices of social science research and social scientists' use of communication technologies. We recently developed TagPad, a tool for interviewing participants and analyzing social science studies. It runs on an iPad and can be downloaded for free. Go to the information website for more details.

My research area is human-computer interaction, with particular emphasis on ubiquitous computing. More specifically my research attempts to uncover the emergent practices and use of state-of-the-art computing technologies, such as mobile applications and social software in their native environment. I conceptualize and develop these technologies for further study, and I also study existing ones. Most recently I have looked at mobile uses of social media, leading to analyses in privacy perception by users of mobile social media.

Ubiquitous computing technologies are challenging to evaluate, and I therefore use a variety of methods to study technology use in-situ, constantly reevaluating the techniques to better fit the evaluation at hand. I employ qualitative methods such as ethnography and interview methods and often supplement analysis with log-analysis and experimental methods.