Equipment for alpacas:
Quality Llama Products : www.llamaproducts.com 
Useful Llama Items : www.useful-items.com 
Light Livestock Equipment : www.lightlivestockequipment.com

Books:
The Complete Alpaca Book par Eric Hoffman : www.bonnydoonalpacas.org
The Camelid Companion par Marty McGee Bennett : www.camelidynamics.com
The Alpaca Field Manual par Dr. Norm Evan
Llama and Alpaca Neonatal Care par Smith, Timm & Long

Animal Registration:
CLAA (Canadian Llama and Alpaca Association): www.claacanada.com
ARI (Alpaca Registry Inc. - US) : www.alpacaregistry.net