National Center for Biotechnology Information (NCBI)
http://www.ncbi.nim.nih.gov/

All the Virology on the Web
http://www.tulane.edu/~dmsander/

American Society for Microbiology
http://www.asmusa.org/

American Association of Immunologists
http://12.17.12.70/aai/default.asp/

Antimicrobial Agents and Chemotherapy
http://inti-aac.asm.org/

Burgs in the News
http://people.ku.edu/~jbrown/bugs.html/

Centers for Disease Control
http://www.cdc.gov/

Clinical Microbiology Reviews
http://inti-cmr.asm.org/

Digital Learning Center for Microbial Ecology
http://commtechlab.msu.edu/sites/dlc-me/

El Portal de la Virología en Español
http://virología.ua.es/

European Molecular Biology Network
http://hgmp:mrc.ac.uk/brochure/html/index.html/

Introduction to Clinical Microbiology
http://medic.med.uth.tmc.edu/path/00001450.htm/

Instituto de Salud Carlos III
http://www.isciii.es/

Instituto Pasteur
http://www.pasteur.fr/

Journal of Clinical Microbiology
http://inti-jcm.asm.org/

Journal of General Virology
http://www.socgenmicrobiol.org.uk/JGV/default.HTM/

Medical Microbiology
http://www.geociies.com/CapeCanaveral/3504/

Microbiología Clínica en la WWW
http://jcasas_1.comcadiz.com/

Science.org.Virology Lab
http://virology.science.org/

Society for General Microbiology
http://socgenmicrobiol.org.uk/

The Microbiology Network
http://microbiol.org/index.htm/

World Journal of Microbiology & Biotechnology
http://www.bdt.org.br/bioline/wj/