Just collecting a bunch of links on the topic…
Surf like a caveman, a historical summary from New Scientist, 2000
Cognitive Models for Web Design; Information Foraging Theory Applied…Tanya Rabourn’s short ‘n sweet summary
Designing for Information Foragers: A Behavioral Model for Information Seeking on the World Wide Web, James Kalbach’s essay with related LIS references
Peter Pirolli’s publications at PARC User Interface Research
Stuart Card’s publications at PARC UIR
Information Scent at PARC UIR
CHI 2003 Tutorial slides (PDF) from Pirolli and Card
A User-Tracing Architecture for Modeling Interaction with the World Wide Web (PDF), a presentation by Pirolli and Card on SNIF-ACT (combining SNIF: Scent-Based Navigation and Information Foraging with ACT: Adaptive Control of Thought)
SNIF-ACT Home at PARC UIR
Exploring and Finding Information, an entire book chapter by Pirolli
Semi-related: