You probably won't be surprised when I tell you that Glenn Beck wasn't the mastermind behind the campaign to remove Van Jones from his position as the head of the White House Council on Envrionmental Quality... that would be giving Beck way too much credit.
Turns out that the attack was orchestrated by a fringe group of free-marketeers called the Americans for Prosperity (AFP) who describe themselves as "grassroots leaders who engage citizens in the name of limited government and free markets on the local, state and federal levels." You can read a complete backgrounder on AFP here. It suffices to say they get a lot of money from some of the biggest players in the right-wing attack machine.
It will also come as no surprise that AFP is also behind much of the healthcare reform townhall shenanigans.
More:
http://www.desmogblog.com/right-wing-attack-machine-behind-van-jones-affair