Questia is an online library and research service that provides insight on art censorship. This includes scholarly books, journals and articles that deal with official prohibitions or restrictions of any type of expression in arts believed to threaten the political, social or moral order. - [Read more]

The Free Expression Policy Project is a part of the US National Coalition Against Censorship that provides research and policy development on tough art censorship issues. It seeks free speech-friendly solutions to people's concerns that drive censorship campaigns. - [Read more]