Don't Make Me Think. An entertaining and very readable introduction to web usability by Steve Krug.

Key Questions to Ask Your Usability Testing Supplier. A guide from the UK Usability Professionals' Association.

HFRG Questionnaires. Software usability evaluation questionnaires with extensive reference databases for benchmarking ease of use.

HCI Bibliography. An exhaustive collection of Human Computer Interaction related links compiled by Gary Perlman.

useit.com. Jakob Nielsen's popular Alertbox column.

Pallant, A. & Rainbird, G. (1998). "'Flash, Splash & Crash': Human Factors and the implementation of innovative web technologies." In Hanson, M.A. (Ed.) "Contemporary Ergonomics." Taylor & Francis, London.

Pallant, A., Timer, P., & McRae, S. (1996). "Cognitive Mapping as a Tool for Requirements Capture." In Robertson, S.A. (Ed.) "Contemporary Ergonomics." Taylor & Francis, London.