I am a Principal Research Scientist at Yahoo! Research in Santa Clara, CA, where I manage the Internet Experiences Group. I am also the current Vice President of SigCHI, the ACM's Special Interest Group for Human Computer Interaction.

My research focus is social media. At the highest level, I am interested in emerging digital media ethnoscapes - the fluid, shifting landscape of people and groups - that make up internet life. I take a human centered approach to design and innovation, and believe that lasting innovations derive from a deep understanding of how technologies are woven into everyday lives. Therefore my work centralizes the influence of social and cultural factors on people's adoption and adaptation of technologies. Over the last decade, I have conducted studies to address how social technologies and social media are created, consumed, adopted and adapted in different regions: in Japan, the US and the UK - and also in virtual worlds. I have designed applications for personal (mobile, desktop) and public space settings.

My work at Yahoo! Research continues threads that have been previously developed: mediated collaboration, mobile connectivity, transmedia technologies, digital archive and memory, and the development of emplaced media. My work and ideas elaborated in more detail in my written publications, and embodied in technology prototypes and products.