A chapter on Herbert Croly is in, "Grand Illusion: Critics and Champions of the American Century, " bu John Judis. Judis in other parts of this work, and elsewhere builds on Martin J. Sklar, author of pioneering articles in Studies on the Left on corporate liberalism expanded later for his, "The Corporate Reconstruction of American Capitalism." On the net see this paper by Sklar, http://www2.hnet.msu.edu/~shgape/sklar2.html
Building on Sklar is James Livingston in, "Pragmatism and the Political Economy of Cultural Revolution, 1850-1940.
BTW, some of the classic pieces in Studies on the Left are collected in, "For A New America, Studies on the Left, 1959-1967, " published by Random House/Vintage in '70, edited by James Weinstein. Among the pickings are Genovese, Norm Fruchter on Hannah Arendt and the Old Left, Harold Cruse and Robert Williams on Black Nationalism, Weinstein reviewing the historiography of the CPUSA and SP, Sklar on Woodrow Wilson and corporate liberalism. Michael Pugliese