Leitner, Alexander, Bonvin, Alexandre M J J, Borchers, Christoph H, Chalkley, Robert J, Chamot-Rooke, Julia, Combe, Colin W, Cox, Jürgen, Dong, Meng-Qiu, Fischer, Lutz, Götze, Michael, Gozzo, Fabio C, Heck, Albert J R, Hoopmann, Michael R, Huang, Lan, Ishihama, Yasushi, Jones, Andrew R, Kalisman, Nir, Kohlbacher, Oliver, Mechtler, Karl, Moritz, Robert L, Netz, Eugen, Novak, Petr, Petrotchenko, Evgeniy, Sali, Andrej, Scheltema, Richard A, Schmidt, Carla, Schriemer, David, Sinz, Andrea, Sobott, Frank, Stengel, Florian, Thalassinos, Konstantinos, Urlaub, Henning, Viner, Rosa, Vizcaíno, Juan A, Wilkins, Marc R, Rappsilber, Juri, Sub NMR Spectroscopy, Afd Biomol.Mass Spect. and Proteomics, Sub Biomol.Mass Spectrometry & Proteom., Biomolecular Mass Spectrometry and Proteomics, NMR Spectroscopy, Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] (ETH Zürich), Utrecht University [Utrecht], University of Victoria [Canada] (UVIC), Lady Davis Institute for Medical Research [Montréal], McGill University = Université McGill [Montréal, Canada]-Jewish General Hospital, Skolkovo Institute of Science and Technology [Moscow] (Skoltech), University of California [San Francisco] (UCSF), University of California, Spectrométrie de Masse pour la Biologie – Mass Spectrometry for Biology (UTechS MSBio), Institut Pasteur [Paris]-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), University of Edinburgh, Max Planck Institute of Biochemistry (MPIB), Max-Planck-Gesellschaft, National Institute of Biological Sciences [Beijing, China] (Number 7 Science Park Road), Zhongguancun Life Science Park [Beijing, China], Technische Universität Berlin (TU), University of Campinas [Campinas] (UNICAMP), Institute for Systems Biology [Seattle] (ISB), University of California [Irvine] (UCI), Kyoto University [Kyoto], University of Liverpool, The Hebrew University of Jerusalem (HUJ), University of Tübingen, Max Planck Institute for Developmental Biology, Research Institute of Molecular Pathology (IMP), Charles University [Prague] (CU), Martin-Luther-University Halle-Wittenberg, University of Calgary, University of Leeds, University of Antwerp (UA), University of Konstanz, Birkbeck College [University of London], University College of London [London] (UCL), Max-Planck-Institut für Biophysikalische Chemie - Max Planck Institute for Biophysical Chemistry [Göttingen], Thermo Fisher Scientific (Bremen) GmbH, European Bioinformatics Institute [Hinxton] (EMBL-EBI), EMBL Heidelberg, University of New South Wales [Sydney] (UNSW), This work was supported by the Wellcome Trust through a Senior Research Fellowship to J.R. (103139) and the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation, project 329673113). Funded by the DFG under Germany's Excellence Strategy, EXC 2008/1-390540038. The Wellcome Centre for Cell Biology is supported by core funding from the Wellcome Trust (203149)., We thank the participants of the meetings mentioned throughout the text for their many different contributions. Although we made an effort to include all labs that may feel a belonging to the field of Cross-linking MS, we apologize to all those that we missed. Developing standards in Cross-linking MS is to be viewed as an inclusive activity, so please feel warmly invited to join our efforts, University of California [San Francisco] (UC San Francisco), University of California (UC), Institut Pasteur [Paris] (IP)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Max-Planck-Institut für Biochemie = Max Planck Institute of Biochemistry (MPIB), Technical University of Berlin / Technische Universität Berlin (TU), Universidade Estadual de Campinas = University of Campinas (UNICAMP), University of California [Irvine] (UC Irvine), Kyoto University, Sub NMR Spectroscopy, Afd Biomol.Mass Spect. and Proteomics, Sub Biomol.Mass Spectrometry & Proteom., Biomolecular Mass Spectrometry and Proteomics, and NMR Spectroscopy