Article: NHibernate best practices with ASP.NET

Billy McCafferty has written an excellent article on NHibernate and Domain Driven Design. It can be found here on the CodeProject.
Although it is focused on using NHibernate in ASP.NET, it is still very interesting even if you do not develop in ASP.NET. He talks about a few key concepts in DDD, and the example code is also very interesting.
There's one little drawback however in his example code: although he mentions that the way of working he demonstrates should work for Winforms development as well, I do not completely agree on that. However, I've to investigate it a bit more, which I'll do as soon as I find some time. Once done, I'll post my findings offcourse.