Web site: http://www.publishers.org/
AAP represents publishers of all sizes and types located throughout the country. The Association's "core" programs deal with matters of general interest:intellectual property; new technology and digital issues of concern to publishers; Freedom to read, censorship and libel; international freedom to publish; funding for education and libraries; postal rates and regulations; tax and trade policy; international copyright enforcement.
The Center for Responsive Politics (OpenSecrects.org) tracks money in U.S. politics and its effect on elections and public policy.