• The Hemobag^® brochure  
• AABB: National Blood Collection & Utilization Survey
• All about blood (ARC)
• Better Blood Transfusion Continuing Education Program
• Blood & blood components (FDA)
• Blood Education
• Canadian Blood Services: Clinical Guide to Transfusion (edited by Gwen Clarke and Morris Blajchman)
• Canadian Blood Services: Educational site
• Clinical Use of Blood (WHO, 2004)Learn Intra-Operative Cell Salvage (online course from the UK National Blood Service)
• Haljamäe H. Crystalloids versus colloids: the controversy. In: Transfusion Medicine and Alternatives to Blood Transfusion, 2000 Edition, Network for Advancement of Transfusion Alternatives (NATA).
• How it's made: blood products (video)
• LabTestsOnline
• Learn Cell Salvage (UK Blood and Tissue Services)
• Rossaint R, Bouillon B, Cerny V, Coats TJ, Duranteau J, Fernández-Mondéjar E, et al. Management of bleeding following major trauma: an updated European guideline. Crit Care. 2010 Apr 6;14(2):R52
•  Spahn DR. Transfusion associated with improved outcomes - where is the evidence?
• TraQ: Transfusion practice guidelines