AMP: Artists' Meeting Place and Resource Collective

Create Culture
http://www.createculture.org

The International Theatre Network http://globaltheatre.ning.com

Kadmus Arts
http://www.kadmusarts.com

NYTheatreCast
Podcasts about New York theatre
http://www.nytheatrecast.com/

Theatre Without Borders
http://www.theatrewithoutborders.com
From their website, "TWB is an informal, volunteer, virtual community that shares information and builds connections between individuals and institutions interested in international theatre exchange."