Mt. Erebus Volcano Observatory - Photos and summary of studies on Antartica's Mt. Erebus, the world's southernmost volcano. - http://www.ees.nmt.edu/Geop/mevo/mevo.html
Colima Volcano Observatory - Monitors an active volcano in Mexico that has erupted more than 40 times since 1576. Reports mainly in Spanish but some are translated into English. - http://www.ucol.mx/volcan/
Hawaiian Volcano Observatory - U.S. Geological Survey's comprehensive site about Hawiian Volcanoes. - http://hvo.wr.usgs.gov/
Montserrat Volcano Observatory - Monitors erupting lava dome on the Island of Montserrat in the Caribbean. - http://www.mvo.ms/
Cascades Volcano Observatory - Information about and photos of the Cascades volcanoes, Mount Saint Helens updates, and volcano monitoring and hazards information. - http://vulcan.wr.usgs.gov/home.html
Volcano Research Center - Part of the Earthquake Research Institute (ERI) of the University of Tokyo. Conducts various scientific researches on magmatic processes and volcano dynamics, which will help to improve prediction of volcanic eruptions. - http://hakone.eri.u-tokyo.ac.jp/vrc/VRC.html