Jessica Moss (Oxford) writes with an excellent suggestion (sorry I didn't think of this sooner):

I'm writing to suggest that you might use your blog to let philosophers stranded by the volcano find or offer places to stay – I'm stuck in the US and have an empty apartment in Oxford that I'd be happy to give to someone stuck in the UK until things clear up.  (E-mail Jessica if you're interested.)

If you've had your travel plans disrupted by the volcanic ash that has disrupted so much air travel to and from Europe, please feel free to post your information in the comment section.