Web sites (a selection)
Puppetry Home Page: traditions around the world
Puppetry Home Page: Shadow Puppetry: Designing, building and performing
Burmese Theatre: making a shadow puppet theatre and puppets
Shadow Light Productions (Theater company dedicated to the exploration of shadows in theatrical use)
Bali and Beyond (Balinese and Javanese shadow theater)
Shadow theater of the Mahabarata
Dutch page about shadow puppetry

Books (not complete)
Worlds of Shadow, Teaching with Shadow Puppetry by David and Donna Wisniewski (an absolute must for teachers!)
Shadow Puppets and Shadow Play by David Currell (2007)
Bibliography about shadow puppetry (1999)