Nudity Required, No Pay is an excellent blog for actors, especially female actors, all about the exploitation of actors in the theatre world.
You can get a sense of the attitude towards actors by some theatre producers here - this email was written by the director who took a copy of my script, slapped his stage directions on it, then sued me for violating HIS copyright when I went to produce my play. He doesn't have any respect for playwrights either.