College
American Parliamentary Debate Association, Baylor University -- Glenn R. Capp Debate Forum, Bethel College Forensics Team, Cal Forensics- UC Berkeley's Debate Team, Canadian University Society for Intercollegiate De, Carleton University Debating Society, Case Western Reserve University Forensics Union, Colm's World Debating Website, Concordia University Debating Society, Creighton University Forensics Team
Homeschooled
Chicago CHARGE debate, Georgia Christian Forensics League, Homeschooldebate, HomeSchoolDebate.net, Intrepid Speech and Debate Club, National Christian Forensics and Communications As, NCFCA Debate Discussion Board, Paradigm, Parliamentary Debate and Speech for Homeschoolers, Richmond Homeschool Forensics
American Forensic Association
Umbrella organization for CEDA, NPDA, NFA, IDEA, ADA, and the interstate oratorical association. Provides membership information, history, news, and results.
Debate Addict mailing list archives
A mailing list where parliamentary debate and individual events are discussed.
IDEA Debatabase
A searchable reference utility for debate research topics. Registration required.
International Public Debate Association
History, tournament schedule, and other information on IPDA style debate.
Irish Times Debating Championships
Irish National Debating Championships
National Educational Debate Association
An invitation only debate association that emphasizes audience centered debate.
National Parliamentary Debate Association
Tournament schedule, news, membership information, and information about NPDA nationals. The NPDA national tournament is also the largest college debate tournament in the United States.
NDTCEDA.com
Host of the eDebate college debate listserv. Includes subscription information and a message archive.
South African National Debating Council
Promotes the development of debating in South Africa.
The Middle School Public Debate Program
A program administered by Claremont Colleges National Debate Outreach (CCNDO) that archives free materials for teachers, students, and parents involved in middle school debating.
The-Judges british parliamentary debating
An unconventional resource for british parliamentary debaters with an extensive array of debating tutorials.