Organizations:

Actors’ Equity Association  

American Federation of Television and Radio Artists 

American Society for Alexander Technique 

Canadian Actors’ Equity Association 

International Phonetic Association - IPA

The National Center for Voice & Speech

Screen Actors Guild 

Society of Stage Directors and Choreographers 

Voice & Speech Trainers Association 

Improvisation, Theatresports™, etc.

Canadian Improv Games

The New Improv Page - Includes Comprehensive Lists of Companies

Improv Across America - Includes Comprehensive Lists of Companies

Improv Resource Center - Includes forums, message boards, etc.

Improvisational Comedy Theatre Structures - Great site! Lists all sorts of exercises and methods.

Improv Games - Links to hundreds of games

Interactive Improv Theatre News 

International Theatresports™ Institute 

Second City -

Theatresports 

Viola Spolin Bio 

The Spolin Institute - Great site. Includes sound files

Regional Resources 

Canadian Actor Online

Speech, Accents, Etc:

International Phonetic Association - IPA

The National Center for Voice & Speech

Speech on the Web 

Tongue Twister Database

Elizabethan Pronunciation, Accents, & Speech Resources

Voice & Speech Trainers Association 

the voice+speech source

Monologues, Scenes to Act, etc.

Shakespeare Monologues - Nice resource for acting students

Colin’s Movie Monologues - Monologues from the world of film

General Acting Handbooks 
& Training Resources

The Acting Depot - Includes a wide array of indexed resource listings and hints for those entering the acting profession

Acting Workshop Online - Has a lot of organized information to those aspiring to enter into the business of acting for stage and screen.

Specific Acting Techniques, 
Theory,  and Styles

The Complete Guide To The Alexander Technique

The Alexander Technique Center of Washington, D.C

Feldenkrais Resources

Stella Adler Resources 

Dalcroze Eurhythmics and the Theatre

The Great Acting Teachers, a collection of Bios

Stella Adler

PBS Biography page

Sanford Meisner 

Bio from The Meisner Center

Misc

ABWAG  
Somewhat disjointed but interesting site nevertheless.

Actors Struggle to Scrape a Wage:
Depressing BBC Article on a British Actors Equity Survey of acting employment issues.

Applied and Interactive Theatre Guide

The Non-Traditional Casting Project (NTCP)

Storytelling Links 

Who Needs Actors - An article by Kurt Anderson about the move towards digital performance

Frederic March Website

Info Please Pronunciation Dictionary

Theatre Architecture

Great Buildings Online Database - Amazing Resource

New Zealand Venue Web. Includes many DXF CAD files. (Click on the NORTH Island...Wellington in particular)