The University of Wisconsin - Madison's CIMSS department has released the following hi-res satellite pictures of the volcanic eruption in Iceland.
The first picture shows the volcano (yellow box), and the smoke (black lines shown by the arrows). The second and third pictures are of the ash plume, taken on April 17 & 19 respectively. Upper level winds have spread this ash across parts of Europe. The presence of this ash in the atmosphere has been responsible for grounding flights across Europe.