Welcome to the Volcano section of Geo-Earth. Here you will find the necessary links to different volcano organizations. You can use the forum to discuss related topics, although free membership is preferred. A definition of a volcano can be found below:

An opening in the earth's crust through which molten lava, ash, and gases are ejected.

U.S. Geological Survey (USGS): http://volcanoes.usgs.gov/
Volcano Live: http://www.volcanolive.com/
USGS Updates: http://www.volcano.si.edu/reports/usgs/
British Geological Survey: http://www.quakes.bgs.ac.uk/
Northern Pacific Volcano Monitoring: http://ivis.eps.pitt.edu/projects/nopac/
Significant Eruptions Database: http://www.ngdc.noaa.gov/seg/hazard/vol_srch.shtml