Welcome to my home page.  I hold a dual-culture faculty position in Information & Computer Sciences (ICS) and Library & Information Science (LIS) at the University of Hawaii.  I'm interested in how people integrate diverse types of knowledge, from document collections to the work of people with different kinds of expertise.  I study interdisciplinary scientific collaborations with the NASA Astrobiology Institute, and social Q&A communities like Answerbag.

I'm an Associate Professor in ICS and LIS, and Chair of the Interdisciplinary PhD Program in Communication & Information Sciences (CIS), which encompasses four units and three colleges across the University of Hawaii.