These have MORE links. International Amateur Theatre Association, Institute of Outdoor Drama, League of American Theatres and Producers, and the Society of Stage Directors and Choreographers. Links to homepages for a couple of dozen playwrights. The World Wide Web provides a particularly accessible venue for putting incomplete, one-sided and undocumented material before the public. Just because you found it on the 'net doesn't make it ture.
Content is what counts.