The Conservative Chronicle: Columnists
Directory of more than 35 nationally-respected columnists and 26 cartoonists with conservative appeal.
http://conservativechronicle.com/columnists/

HeadlineSpot: Columnists
Directory of columnists grouped by subject.
http://www.headlinespot.com/opinion/columnists/

Newspaper Columnists Online
Online directory to over 700 newspaper and editorial columnists. Also editorial cartoonists, political sites, politically oriented periodicals, and other political science resources.
http://www.blueagle.com/

The Columnists
San Francisco Bay Area newspaper columnists, now working independently, have joined their talents to produce free columns on the arts, including theater, film, television, humor and life in general.
http://www.thecolumnists.com/

American Daily
Offers daily opinion columns from various politically conservative commentators. Includes profiles and a newsletter.
http://www.americandaily.com

Creators: Opinion
Column archives, biographies and contact information for the member columnists, representing a variety of viewpoints.
http://www.creators.com/opinion.html

Tribune Media Services: Commentators in Art and Text
Offers opinion and analysis columnists and editorial cartoonists. Full list plus directories by type.
http://www.tmsfeatures.com/tmsfeatures/maincategory.jsp?catid=23

CNews: Columnists
Columnists from CNews, the Calgary Sun, Edmonton Sun, London Free Press, Ottawa Sun, Toronto Sun, Webfin and Winnipeg Sun.
http://cnews.canoe.ca/CNEWS/Columnists/

Townhall.com: Conservative Columnists
More than 60 conservative columnists from various newspapers.
http://www.townhall.com/columnists/

National Society of Newspaper Columnists
Sage advice from veteran scribes and networking opportunities for staff columnists, self-syndicated and freelance columnists, and novices. Find facts about fellow members in the database.
http://www.columnists.com/