At the time of writing (June 2011), Claude Grandpey was the Vice-President of the French "L'Association Volcanologique Européenne" (L.A.V.E.) and is also writing a very interesting blog about volcanoes.
Just go to http://volcans.blogs-de-voyage.fr/
Eruption blog of Erik Klemetti
Iceland Volcano and Earthquake blog of Jon Frimann Jonsson
Magma Cum Laude Blog
Blog of Jessica Ball related to volcanology.
Marc Szeglat - Vulkane.net
Professional volcano videos, photos and information by german filmer Marc Szeglat (in German).
Great volcano pictures and others from Martin Rietze.
Great pictures from volcanoes all over the world and other things.
Photography and Information by Dr Richard Roscoe
Société Volcanologique Européenne (Sveurop.org)
Website of the Société Volcanologique Européenne, with a lot of up to date information.
Great volcano pictures from Thorsten Boeckel and others.
Volcano Cafe Blog of various great writers
Follow Volcano Cafe on their blog.