The Institute for Public Relations

IPR is an independent nonprofit that bridges the academy and the profession, supporting PR research and mainstreaming this knowledge into practice through PR education.
http://www.instituteforpr.org/

Public Relations Society of America

About PRSAThe Public Relations Society of America, based in New York City, is the world's largest organization for public relations professionals. The Society has nearly 32,000 professional and student members. PRSA is organized into more than 100 Chapters nationwide, 19 Professional Interest Sections and Affinity Groups, which represent business and industry, counseling firms, independent practitioners, military, government, associations, hospitals, schools, professional services firms and nonprofit organizations. The Public Relations Student Society of America (PRSSA) has nearly 300 Chapters at colleges and universities throughout the United States.
http://www.prsa.org/index.html

PR Week

News and features about the public relations industry.skies!
http://www.prweek.com/

American Marketing Association

The American Marketing Association (AMA) is the professional association for individuals and organizations who are leading the practice, teaching, and development of marketing worldwide. Through relevant information, comprehensive education and targeted networking, the AMA assists marketers in deepening their marketing expertise, elevating their careers and ultimately, achieving better results.
http://www.marketingpower.com/