NASA-Infrared Space Observatory Key Projects Review (1992); Scientific Working Group for NRAO Green Bank Telescope (1992–99); Arecibo Users and Scientific Advisory Committee (1993–96); NSF Site Review for Center for Particle Astrophysics (1994); NASA Astrophysics Data Program Review (1995); Smithsonian Astrophysical Observatory Time Allocation Committee (1995–97); NSF–Caltech Submillimeter Observatory Review (1996); NSF Galactic Astronomy ISM Panel (1996, 2000 (chair)); M4 Satellite Science Advisory Group, Chair (1997, 2000); Harvard University Faculty Council (1997–98); AAS Publications Board (1998–2001); United States Square Kilometer Array Consortium Representative (1999–); National Academy of Science’s Committee on Astronomy and Astrophysics (2000–2003); NASA–SIRTF Legacy Review, Panel Chair (2000); AAS Committee on Astronomy and Public Policy (2000–6); NRAO VLA/VLBA Time Allocation Committee (2001–4); AUI NRAO Director Search Committee (2002); Harvard University Provost’s Committee on Science (2002–3); Task Force on Science and Technology (Harvard, 2003–4); Center for Astrophysics Director Search Advisory Committee (2003–4); Spitzer Science Center Oversight Committee (2003–6); Harvard Commission of Inquiry (2004–5, 2007–8); Harvard Subcommittee on Quantitative Reasoning (2002–2008); Goldwater Scholarship Selection Committee (2004–); Harvard FAS Dean Search Advisory Committee (2006–7); AAS Chambliss Award (for Textbook Writing) Committee (2006–7); Yale University Visiting Committee for Astronomy (2008); AAAS Chair (2008); AAAS Board (2009); NRC board on Research Data and Information (2009–2012); VAO Scientific Advisory Committee (2009–2012); ALMA North American Science Advisory Committee (2009–2012); Graduate Admissions, Chair (2011, 2014); Mentoring Committee, Chair (2011); Harvard Library Digital Scholarship Committee (2011–2012); Committee on Professional Conduct (2011–); HILT Advisory Committee (2012–2014); Vice Provost’s Advances in Learning Advisory Committee (2014–); Harvard/FAS Library Committee (2014–); American Astronomical Society Publications Task Force (2014); American Astronomical Society Publications WorldWide Telescope Force (2015); Astroinformatics and Astrostatitistics Working Group of the American Astronomical Society (2012–); Sloan/UCLA Knowledge Infrastructures Advisory Committee (2012–); Board on Data, Ethics and Society (2014–); [Departmental and Conference Organizing Commitees not listed here.]

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