Center for bead research

http://www.thebeadsite.com/

La Compagnia delle perle Milano

http://perle.csaamilano.it/index.php

Picard trade beads

http://www.picardbeads.com/

Middle eastern and Venetian glass beads

http://www.glass-beads.it/

Centro studi archeologia africana di Milano

http://www.csaamilano.it/

http://www.beadlinks.com

Bead database

http://www.bead-database.org/

Our Water filters project for help Mali

http://www.simplefiltre.com