Some great usability ROI resources:
- Usability News: The Return on Investment (ROI) for Personas
- Usability First: Usability ROI: Case Studies
- Rashmi Sinha: ROI of Usability: A Collection of Links
- Dey Alexander Consulting: Return on investment
- WebWord: A Business Case for Usability
I forgot I also discussed this issue a while back here.
