Sociologist G. William (Bill) Domhoff provides a remarkable online resource to complement an invaluable text, both sharing the name Who Rules America. Domhoff ably demystifies the master class, drawing attention to the usage of foundations, private clubs, and interlocking directorships. Complementary to Peter Phillips' Global Giants. Here's Domhoff's intro to the website:
Welcome to WhoRulesAmerica.net, a site about how power is distributed and wielded in the United States. It both builds upon and greatly supplements the book Who Rules America?, now in its 7th edition. The book's new subtitle,The Triumph of the Corporate Rich,reflects the success of the wealthy few in defeating all of their rivals (e.g., organized labor, liberals, environmentalists) over the course of the past 35 years. The story of how the corporate rich won all the big battles is complicated, but most of the answers are in the new Who Rules America? and/or this Web site; you can also watch some videos of Bill giving invited lectures on the topic.