Joe Kraus, one of the founders of Excite, has a blog where he talks about entrepreneurship. In one of his first entries, he writes about Openess at Whole Foods
Each store had a book in the office that listed the pay of every employee for the previous year. The book was available to anyone -- and was especially valuable if you were promoted or if you relocated, and wanted to see how your pay compared with your colleagues'. The pay book, surprisingly little used, set a tone of what Mackey called "no secrets management."