Here are a few links to really good websites that I totally recommend.
David Leech has an amazing website dedicated to the memory of Bob Pelham and Pelham Puppets
http://www.pelhampuppets.uk.com/
http://www.pelhampuppets.uk.com/
The site below is for collectors to share their knowledge. It has masses of great images and information that will help with your interest in Puppets.