I just discovered Orchard CMS [http://orchardproject.net/], and I must say that
based solely on the open source projects upon which it relies
[http://docs.orchardproject.net/Documentation/Orchard-dependencies-and-libraries]
, it looks like a GREAT platform. Namely, AutoFac [http://autofac.org/], Log4Net
[http://logging.apache.org/log4net/], NHibernate [http://nhforge.