Hanselman blogs on Atom, AtomPub and BlogSvc, an AtomPub Server in WCF

It also appears that the site at http://www.blogsvc.net is also the Demo Site for BlogSvc itself! Actually, if you download the source, you're downloading the complete implementation of the BlogSvc.net website. Booyachaka. Much respect. Since the project uses Atom and AtomPub he can work against it using Windows Live Writer.