Happy there is a book on the subject cause so far the documentation for IWS and IAS is pretty weak. A lot of companies that I do work for, complain about that. Also much complaints about the level of documentation for iPlanet portal.
One product that people in my company have really liked though is iPlanet process manager. To use that, you need IAS.
Right now I started to use Resin for my personal, small business use requiring a
J2EE server. Any reason I should consider IAS instead?