This journal has a knowledgeable and hard-working editorial board, listed on the journal's Web site, but for most submissions we also enlist the aid of specialist reviewers outside the editorial board. The Editor of Computational Linguistics would like to express her gratitude to the external reviewers listed here, who anonymously reviewed papers for the journal during the preparation of this volume (Volume 42). Their generosity, judicious judgment, and prompt response substantially helped us to publish a journal that both is timely and maintains exacting scientific standards; it is a genuine pleasure to thank them collectively for their dedicated service.

Colin Cherry

Joakim Nivre

Kemal Oflazer

Chris Callison-Burch

Adam Lopez

Marine Carpuat

Boxing Chen

Kenji Sagae

Mehrnoosh Sadrzadeh

Annie Louis

Alessandro Moschitti

Massimo Poesio

Manfred Stede

Felice Dell'Orletta

Ryan McDonald

Yue Zhang

Emily Bender

Robin Cooper

Richard Johansson

Alessandro Lenci

Diarmuid Ó Séaghdha

Denis Paperno

Arne Jönsson

David Chiang

Stefan Thater

Emily Pitler

Bharat Ram Ambati

Joan Andreu Sanchez Peiro

John Nerbonne

Mark Dras

Jackie Cheung

Johan Bos

Sebastian Riedel

Sandra Kübler

Graham Neubig

Kristina Toutanova

Philipp Koehn

Alexander Clark

Roberto Navigli

Ming Zhou

Dan Garrette

Sanguthevar Rajasekaran

Serge Sharoff

Yves Scherrer

Mark Steedman

Chris Brew

Katryn Erk

Chris Quirk

Tim Baldwin

Raffaella Bernardi

Ann Copestake

Graeme Hirst

Louise McNally

Sebastian Padó

Stephen Pulman

Taro Watanabe

Keith Hall

Sabine Schulte im Walde

Chi-kiu Lo

Hai Zhao

Martha Palmer

Yoav Goldberg

Yoav Artzi

Marco Baroni

Svetlana Kiritchenko

Raymond Mooney