"Three years after the William J. Clinton Presidential Library opened its doors, the list of donors who helped the former president build his $165 million complex remains a secret from the public.
Yet the Blotter on ABCNews.com has learned that the Clinton Foundation sold portions of the list through a data company headed by a longtime friend and donor.
"The fact that they've sold the list and then turned around and said that these names must be kept anonymous completely undercuts their argument," said Sheila Krumholz of the Center for Responsive Politics, a Washington, D.C.-based government watchdog group that tracks the influence of money in politics." (source)
I would think that the list of donors to a Presidential library would fall under the scope of the 'Freedom of Information Act', but it seems I would be wrong. He's gotta know that keeping the list anonymous makes it seem shady, but then selling it...even worse.