http://www.prweekus.com
2. PR Web
http://www.prweb.com
3. PRSA
http://www.prsa.org
4. PR Central
http://www.prcentral.com
5. The PR Network
http://www.theprnetwork.com
6. O'Dwyer's Inside New of PR
http://www.odwyerpr.com
7. Sam Whitmore's Media Survey
http://www.mediasurvey.com
8. ProfNet
http://www.profnet.com
9. Council of Public Relations Firms
http://www.prfirms.org
10. CheapPublicity.com
http://www.cheappublicity.com