WebMD
Web MD provides services that help physicians, consumers, providers and health plans navigate the complexity of the healthcare system.
 
Doctors Guide
Dedicated to informing and/or educating healthcare professionals as well as patients around the world, the Doctor's Guide offers educational patient handouts and free email updates on conditions, outlining the latest news, treatments, medications, discussion groups and related sites.
 
Food and Drug Administration (FDA)
The FDA is the federal agency responsible for ensuring that foods are safe, wholesome and sanitary and that human and veterinary drugs, biological products, and medical devices are safe and effective. The FDA also ensures that these products are honestly, accurately and informatively represented to the public.
 
United States Department of Agriculture (USDA)
The USDA is responsible for the safety of meat, poultry and egg products, and is also a research leader in everything from human nutrition to new crop technologies.

 
National Library of Medicine
The National Library of Medicine is the worlds largest medical library, offering a wide array of online resources.
Articles:

Oral bovine colostrum supplementation enhances buffer capacity but not rowing performance in elite female rowers.
http://www.ncbi.nlm.nih.gov:80/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=12432178&dopt=Abstract
 
Characteristic transfer of colostrum-derived biologically active substances into cerebrospinal fluid via blood in natural suckling neonatal pigs.
http://www.ncbi.nlm.nih.gov:80/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=12440791&dopt=Abstract
 

Total antioxidant capacity of colostrum, and transitional and mature human milk. http://www.ncbi.nlm.nih.gov:80/entrezquery.fcgi?