37 signals has a similar experiment, "Back in 2008 we shared some of our workplace experiments including the four day work week (still in effect May – Oct), ..

37 signals has a similar experiment, "Back in 2008 we shared some of our workplace experiments including the four day work week (still in effect May – Oct), ...." mentioned at: http://37signals.com/svn/posts/3186-workplace-experiments-a-month-to-yourself http://37signals.com/svn/posts/3186-workplace-experiments-a-... and the 2008 article: http://37signals.com/svn/posts/893-workplace-experiments http://37signals.com/svn/posts/893-workplace-experiments