Absolutely Theater
Forums dedicated to the discussion and operation of all things theater.

Educational Theatre Association
Discussion boards relating to the theatre and acting. Topics include scripts, technical matters, performing arts education, and the theatre for life advocacy campaign.

American Theater Web
Discussion boards relating to American theaters, musicals, monologues, broadway shows, and theater books.

Community Theater Green Room
Discussion boards with topics including theater resources, articles, how-tos, directing, props, set design, play reading, and humor about acting.

GayTheatre Exchange
Free networking site for dialogue, exchanges, and unabashed self-promotion for those involved with gay theatre, film, and music.