Useful reading

Summarised from our earlier emails. Anything else to add...?

Jacob Nielsen's blog on web usability
Steve Krug's website on usability

Designing web usability. Jacob Nielsen, 2000.
Prioritizing Web usability. Jacob Nielsen, 2006.
Don't make me think! : a common sense approach to web usability. Steve Krug, 2005.
Rocket surgery made easy: the do-it-yourself guide to finding and fixing guide usability problems. Steve Krug, 2009.