'Dark Money' Groups Exceed Super PAC Spending, Secrecy | Common Dreams
"The top five outside spending groups on presidential election ads have reported less than 1% of their spending to the Federal Election Commission, according to a new report by national research and advocacy organizations Dēmos and US PIRG. Multiple types of outside spending groups are playing an even larger and more secretive role in the 2012 election cycle than previously thought or estimated."
