Electric Politics’ George Kenney interviews James Petras about the influence of the ‘Israel Lobby’ as a power configuration in the United States. See also Petras’ recent essay From Gaza to Tehran: Israel Asserting Middle East Supremacy (.pdf at Petras’ site; also available at the excellent ICH). And if you haven’t already, have a look at M. Shahid Alam’s Chomsky and the Oil Lobby.
N.B. In the interests of accuracy, I believe Petras is referring (around the 16 minute mark) to the fact that Harvard had its logo removed from the working paper, which is still available on the Harvard site. You can still find the .pdf here.
I found this so absorbing that I looked around for the debate with Norman Finkelstein he mentioned:
http://odeo.com/episodes/11214943