This paper claims that Shadow Technical Program Committee (TPC) should be organized on a regular basis for attractive conferences in the networking domain. It helps ensuring that young generations of researchers have experience with the process of reviewing and selecting papers before they actually become part of regular TPCs. We highlight several reasons why a shadow TPC offers a unique educational experience, as compared with the two most traditional learning process: "delegated review" and "learn on the job". We report examples taken from the CoNEXT 2007 shadow TPC and announce the CoNEXT 2008 Shadow TPC