Various sites and blogs I like.
Clastic Detritus – A really great sedimentology-focussed blog
Eruptions – All things volcano
The Contemplative Mammoth – Ecology, climate change, and science in general
Highly Allochthonous – a rather excellent general earth science blog.
Iceland Earthquake and Volcano blog – Does what it says on the tin.
Information Is Beautiful – A really inspiring look at how data can be presented
IRIS Seismic monitor – Live mapping of worldwide earthquakes
NASA Earth Observatory – Articles, discussion and images from NASA research projects
University of Portsmouth Geological and Environmental Labs – The analytical and commercial engagement arm of the work I do. ROck mechanics testing, together with a range of microanalysis and other cool stuff – give it a look!