International Association of Volcanology and Chemistry of the Earth’s Interior
http://www.iavcei.org/

International Dyke Conference 2005
http://idc5.gsf.fi

U. of Leicester site. Note "Formation of large igneous provinces (LIPs)" and "Relationship between plumes and continental rifting"
http://www.le.ac.uk/gl/re/resprofs/magma.html

Continental flood basalts and layered intrusions 'chapter' from an electronic textbook on "Geochemistry of Igneous Rocks" by B.M. Gunn (http://www.geokem.com)
http://www.geokem.com/flood-basalts.html

Plumes and plumes alternatives
http://www.mantleplumes.org/

Plume and LIP debate page of Geol. Soc. London
http://www.geolsoc.org.uk/template.cfm?name=NakedEmperor
http://www.geolsoc.org.uk/template.cfm?name=WOT3

Large Igneous Provinces, University of Notre Dame
http://www.nd.edu/~cneal/LIPs_Page.html

Lecture on Mantle Plumes and Intraplate Volcanism
http://www.geo.cornell.edu/geology/classes/SES302/01Lectures/302Lecture31.pdf

Climatic effect of LIPs
http://palaeo.gly.bris.ac.uk/Palaeofiles/Triassic/vulc.htm

Great Eruptions in Earth History: climatic effects
http://www.firstscience.com/site/articles/self.asp

GEOROC databases: includes Large Igneous Provinces
http://georoc.mpch-mainz.gwdg.de/

CAMP event (Central Atlantic Magmatic Province)
http://www.auburn.edu/academic/science_math/res_area/geology/camp/

Cenozoic magmatism of northern Madagascar
http://epsc.wustl.edu/~rbuchwaldt/cenozoic.html

Brown University Planetary Geosciences Home Page
http://www.planetary.brown.edu/

Global Precambrian Sedimentation Syndicate
http://www.up.ac.za/academic/geol/gpss/

Volcanic and magmatic studies group (a joint specialist group of the Geological Society of London and the Mineralogical Society)
www.vmsg.org.uk

Vic Camp's How volcanoes work page
http://www.geology.sdsu.edu/how_volcanoes_work/