Can anyone point me to good learning material on PostSharp / laos plugin. I liked the "Librarian" sample shipped with Postsharp, it does cover lots of stuff, but is difficult to understand. Is there any explanation / writeup on samples too?
There is a list of official and contributed documentation at http://www.postsharp.org/about/documentation.
Maybe the best advanced tutorial is the one of Ruurd Boeke at http://www.sitechno.com/Blog/IntroducingEntityFrameworkContribEasyIPocoImplementationV01.aspx.