Our new JACS article "Mechanism of Olefin Metathesis with Neutral and Cationic Molybdenum Imido Alkylidene N Heterocyclic Carbene Complexes" by K. Herz, M. Podewitz, L. Stöhr, D. Wang, W. Frey, K. R. Liedl, S. Sen, M. R. Buchmeiser has been accepted.