Advocacy Journalists: A Biographical Dictionary of Writers and Editors
Scarecrow / NetLibrary.
Available online. (W&L subscription)
Alphabetically-arranged entries on journalists who frequently "advocate their beliefs or ideas about major political or social problems," including such figures as Ambrose Bierce, H.L. Mencken, William F. Buckley, Pete Hamill, Thomas Paine, and the Alsop brothers.
Links will be maintained in several locations in the library Web site, including this subject listing.