Canadian Institute Of Theatre Technology - Representing the Canadian live performance community. Professional Lighting and Sound Association - Trade association within the entertainment technology industry. U.S. Institute for Theatre Technology - A union of theatre technology professionals. Stagecraft Mailing List - Mailing list which covers all aspects of stage work including design, construction, and production. Technical Theatre Handbook - Online book about stagecraft. Special Effects: A History - A history of special effects and stagecraft in the theatre. Rigger's Page - Ratings charts and usage information for a variety of theatrical rigging hardware. Stage Seminars - Technical theatre information aimed at high school teachers and students. Southampton University Backstage Society - Provides technical support to internal and external performing arts societies.