Stage Right Theatre Company - UK-based, runs an international script reading service for aspiring playwrights. - http://www.stageright.org.uk
A Writer's WordShop - Professional dramaturgical services for writers - story analysis, editing, proofreading, look at stageability, marketability. Chosen plays will be recommended to an affiliated theater for a staged reading or ongoing events. - http://www.awriterswordshop.com
E-script, the internet's scriptwriting workshop - Offers online courses and workshops for playwrights, plus an online bookstore and a large, free resource area. - http://www.singlelane.com/escript