Eruption of the Grimsvotn volcano, Iceland:

A new eruption of Grimsvotn volcano began on 21 May. Information is found on the homepages of the Institute of Earth Sciences, University of Iceland and the Icelandic Meteorological office.

http://www.earthice.hi.is/
http://www.vedur.is/

A video film can be watched on the homepage of Freysteinn Sigmundsson, a geophysicist at the Nordic Volcanological Center, Institute of Earth Sciences, University of Iceland, Reykjavik:
http://uni.hi.is/fs

Another very impressive Video on a site of visir.