I have programmed with WPF for more than a year. When I started there weren't so many examples and guidelines to follow, now the situation is much more better.
I would like to ask you some help in listing the best WPF (open) source code examples or projects that you suggest to study in order to learn more about project structure, best practices, etc.
Thank you, Marco
If for you it is enough to have the source available (but not really open regarding the license) I still consider very useful FamilyShow (http://www.vertigo.com/FamilyShow.aspx) and Prism (http://www.codeplex.com/CompositeWPF) for an approach at a different "scale".
EDIT: back here after many years. The new links for the mentioned projects seem to be https://github.com/fredatgithub/FamilyShow and https://github.com/PrismLibrary/Prism . I didn't check in deep, though.