The survey package has benefited from code, bug reports, and feature 
requests from users, including:
  Justin Allen
  Daniel Almirall
  Guiseppe Antonaci
  Vincent Arel-Bundock
  Pedro Luis Baldoni
  Joel Barnes
  Robert Baskin
  Asia Bento
  Maciej Beręsewicz
  Brad Biggerstaff
  Milan Bouchet-Valat
  Adrienne Bradford
  Norman Breslow
  Arthur Burke
  Zeb Burke-Conte
  Ron Burns
  Trent Buskirk
  Stefano Calza
  Shelby Chartkoff
  Henry Chiem
  David Collins
  Anthony Damico
  Wade Davis
  Qiaolan Deng
  Neil Diamond
  Michael Donohue
  Rex Dwyer
  Melanie Edwards
  Adam Elder
  Hannah Evans
  Francisco Fabuel
  Boris Fazio
  Bob Fay
  Daniel Fernandes
  Greg Freedman
  Ben French
  Jacques Ferrez
  Natalie Gallagher
  Daniella Gollinelli
  Barry Graubard
  Alistair Gray
  James Greiner
  Zachary Grinspan
  Brian Guay
  Alois Haslinger
  Kieran Healy
  Lucia Hindorff
  Jeffery Hughes
  Beat Hulliger
  Steven Johnston
  David Eduardo Jorquera Petersen
  Lauren Kennedy
  Ehsan Kharim
  Ward Kinkade
  Stas Kolenikov
  Franziska Kößler
  Scott Kostyshak
  Alex Kowarik
  Pavel Krivitsky
  Michael Laviolette
  Thomas Leeper
  Richard Li
  Thomas Loughlin
  Chandler McClellan
  Klaus Ignacio Lehmann Melendez
  David Molina
  Benmei Liu
  Sebastien Lucie
  Jean Paul Lucas
  Lisa McShane
  Ana Patricia Martins
  Tapan Mehta
  Isabelle Michaud
  Daryl Morris
  Joey Morris
  Kirill Mueller
  Durga Nagori
  Daniel Oehm
  Jean Opsomer
  Raymond Pan
  Gonzalo Perez
  Djalma Pessoa
  Molly Petersen
  Elizabeth Purdom
  Ana Quiterio
  Gillian Raab
  Christian Raschke
  Michael Reiss
  Brian Ripley
  Fred Rohde
  Steve Roberts
  Andrew Robinson
  Ángel Rodríguez Laso
  Mark Rosenstein
  Benjamin Schneider
  Dirk Schumacher
  Dan Simpson
  Pam Shaw
  Bryan Shepherd
  Keiran Shao
  Lee Sieswerda
  Phil Smith
  Matthew Soldner
  Corey Sparks
  Elena Stern
  Ingmar Sturm
  Terry Therneau
  Takahiro Tsuchiya
  Richard Valliant
  Tobias Verbeke
  Renzo Vettori
  Chris Webb
  David Wilson
  Justin Wishart
  Steve White
  Jasper Yang
  Zhiwen Yao
  Thomas Yokota
  Diego Zardetto
  Alan Zaslavsky
  Stephanie Zimmer
  Jing Zhang
  Yilin Zhang
  Tomasz Żółtak
and from dicussions with Chris Wild and Alastair Scott. 

Some work on the package while I was on sabbatical was funded by
Fondation Leducq through a grant to the LINAT collaboration and by the
Marsden Fund through a grant to the University of Auckland.

Much of the new methodology from 2009 to 2016 was supported by the Marsden Fund,
in particular the developments of the Rao-Scott likelihood

Patrick Aboyoun did the S-PLUS port of version 3.6-8

John Preston provided an example of the multistage rescaled bootstrap for testing.

The svyolr() code and the likelihood-based confidence intervals are largely ripped from
the MASS package of Venables & Ripley, and parts of the code for svycoxph() are modified 
from Therneau's survival package.

The C++ code for variances was contributed by Ben Schneider

The small-area estimation code calls the SUMMER package, and comes from Peter Gao,
Jon Wakefield, and Richard Li.

Daniel Oehm at the Australian Bureau of Statistics wrote some improvements for calibrate()
