If you are looking for an huge link page related to stop motion please visit stopmotionanimation.com’s links page: http://stopmotionanimation.com/links/
Below, you can see some other links which I find very usefull:
Masters of StopMotion
Darkstrider – The Masters
http://www.darkstrider.net/obscurities1.html
Animation
Artnatomy – Anatomical Basis of Facial Expression Learning Tool
http://www.artnatomia.net/uk/artnatomyProgram.html
Rhino House
http://www.rhinohouse.com/
Lighting
Itchy Animation
http://www.itchy-animation.co.uk/light.htm
Puppets
Dan Perez / professional sculptor, painter, and model builder
http://www.danperezstudios.com/
Film
Film Festivals – Non Stop Festivals
http://www.filmfestivals.com
The Internet Movie Database
http://www.imdb.com.