I read What is Property? recently and I find myself quite liking Proudhon. I love how he practically debunked the whole bourgeois basis for private property. I enjoy using him in debates against anarcho-capitalist morons that think you can have capitalism without a state. Although I'm not an anarchist, I think it would be interesting to implement his ideas on a small-scale and see what would happen.
Btw, is anyone familiar with the Cercle Proudhon?
Check them out here!