Cathy Marshall is a Senior Researcher at Microsoft Research, Silicon Valley; she has been at Microsoft for the last nine years. Cathy has long worked in the disciplinary interstices of computer science, information science, and the humanities, with occasional collaborations in the arts and the sciences. Her interests include digital archiving and long-term retrieval; how people use and share encountered information; how people read, annotate, navigate through, and interact with eBooks and other electronic publications; and spatial hypertext. She holds provocative views on topics like the Semantic Web and social tagging. Before coming to Microsoft, she was a long-time member of the research staff at Xerox PARC. She has delivered keynotes at WWW, Hypertext, Usenix FAST, CNI, VALA, ACH-ALLC, and a variety of other CS and LIS venues.

• http://iat.ubalt.edu/moulthrop/chrono.html