Folks,
I've started to put together a site on Volcanic ash and info about it for us as pilots, its not detailed enough to be of great use yet but its a start. There is nothing on it you couldn't get from Google info wise, with the exception of some tools that come straight from my in house collection.
You can find it at
ASHTAM Home :: ASHTAM The Aviation, Volcanic Information Site
There is Google Earth Plotter of the volcanic ash Advisories that you can play with the different layers in, it gives I believe a reasonable picture of where the models say the ash cloud is or will be at a point in time, the folder names should give away what you are looking at.
If you just want the latest KML file without having to visit the site it can be found at
http://www.ashtam.co.uk/VACloud.KML
Before anyone says it, I know I need to get out more.
Gary