https://blog.p2pfoundation.net/economics-and-its-failure-to-recognize-the-social-externalities-that-create-value-in-the-first-place/2010/02/05 Researching, documenting and promoting peer to peer practices Sun, 31 Jan 2010 11:06:29 +0000 hourly 1 https://wordpress.org/?v=5.5.15