Association of British Theatre Technicians
   The UK Association for all Theatre Professionals.
   http://www.abtt.org.uk

Canadian Institute Of Theatre Technology
   Representing the Canadian live performance community.
   http://www.citt.org/

Glossary of Technical Theatre Terms
   Listing of technical terms and their definitions.
   http://www.theatrecrafts.com/

Glossary of Theatre Terms
   Provides definitions of many technical theatre terms.
   http://www.dramatic.com.au/glossary/

High School Tech Production
   Technical theatre information aimed at high school students.
   http://www.hstech.org/

IATSE National
   Official site for the IATSE, the union of professional stagehands, motion picture technicans, and allied crafts.
   http://www.iatse-intl.org

Professional Lighting and Sound Association
   Trade association within the entertainment technology industry.
   http://www.plasa.org/

Rigger's Page
   Ratings charts and usage information for a variety of theatrical rigging hardware.
   http://www.rigging.net/

Ring Award
   International competition for stage direction and design.
   http://ringaward.com/en/

Southampton University Backstage Society
   Provides technical support to internal and external performing arts societies.
   http://www.soton.ac.uk/~stagesoc/

Special Effects: A History
   A history of special effects and stagecraft in the theatre.
   http://www.tabula-rasa.info/DarkAges/SpecialEffects.html

Stagecraft Mailing List
   Mailing list which covers all aspects of stage work including design, construction, and production.
   http://stagecraft.theprices.net/

Stagespecs
   Database of technical specifications of theatres across U.S. and Canada.
   http://www.stagespecs.com/

Technical Theatre Handbook
   Online book about stagecraft.
   http://www.gweep.net/~prefect/pubs/iqp/

U.S. Institute for Theatre Technology
   A union of theatre technology professionals.
   http://www.usitt.org/