· Airway Pathology Atlas
http://www.users.interport.net/~jsherry/airwaymap.html

· American Academy of Otolaryngology
http://www.entnet.org/

· Archives of Otolaryngology
http://www.ama-assn.org/public/journals/otol/otolhome.htm

· Baylor Otolaryngology. University of Texas
http://www.bcm.tmc.edu/oto/

· Iassa
http://www.vanaga.es/iapa/index.html

· Johns Hopkins University - Otolaryngology
http://www.med.jhu.edu/otolar/

· Med Files
http://www.geocities.com/HotSprings/2255/ent.html

· Oral Pathology Image Database
http://www.uiowa.edu/~oprm/AtlasHome.html

· Otorhinolaryngolical Research Society
http://www.rcsed.ac.uk/ORS/index.htm

· Practical ENT for Primary Care Providers
http://icarus.med.utoronto.ca/carr/manual/outline.html

· Sociedad Española de ORL y Patología Cérvico Facial
http://www.seorl.org

· The Merck Manual. Ear,Nose,and Throat Disorders
http://www.merck.com/pubs/mmanual/section7/sec7.htm

· Virtual Tour of the Ear. Augustana College
http://ctl.augie.edu/perry/ear/ear.htm

· University of Texas. Departamento de URL
http://www.utmb.edu/oto