Useful links

Organizations regarding Susceptibilty testing:

British Society for Antimicrobial Chemotherapy (BSAC) 
French Society for Microbiology (SFM)
National Committee for Clinical Laboratory Standards (NCCLS)
The Swedish Reference Group for Antibiotics (SRGA)
European Committee on Antimicrobial Susceptibility Testing (EUCAST)

Online Journals:

American Society for Microbiology (ASM)
Journal of Antimicrobial Chemotherapy (JAC)
European Journal of Clinical Microbiology and Infectious Diseases

Other links:

Center for disease control and prevention (CDC)
FDA
World Health Organization (WHO)
Medline
NEQAS

Libraries:

Danish National Library of Science and Medicine
United States National Library og Medicin