Craig Neuwirt recently started a blog focused on NHibernate, as mentioned by Ayende. NHibernate is an ORM tool I have used on current and past projects and it is something I feel I would like I want to study further. So far, Craig is walking us through NHibernate from the ground-up, with the latest and greatest. I anticipate this being an informative blog to follow.

The NHibernate FAQ
Craig Neuwirt
Hibernating Rhinos