IBM User Engineering site http://www-3.ibm.com/ibm/easy/eou_ext.nsf/Publish/1996
As we use IBM development products, this is a good resource for aiding UI
development in an OO environment.
I find this site full of useful info (read ammo) for convincing PM's and
Account Managers/Sales folk that UCD is a major component of software
development and should be relayed to the customer during sales engagement.