Collaborators: Greg A. Keim and Noam Shazeer
Core crossword class: Sushant Agarwal, Catherine M. Cheves, Joseph Fitzgerald, Jason Grosland, Fan Jiang, Shannon Pollard, Karl Weinmeister.
Others: Michael Fulkerson, Mark Peot, Robert Duvall, Fred Horch, Siddhartha Chatterjee, Geoff Cohen, Steve Ruby, Nabil H. Mustafa, Alan Biermann, Donald Loveland, Gert Webelhuth, Robert Vila, Sam Dwarakanath, Will Portnoy, Michail Lagoudakis, Steve Majercik, Syam Gadde, Lars Agre.
The Internet!
Also thanks to: Will Shortz, William Tunstall-Pedoe.