Chaps, after digging into the documentation some more and running some experiments, I can see that hosting multiple websites and domains in a single storage account is not possible. I didn't notice for a while that there is a Storage Account > Custom Domain setting in the portal where you enter the domain name being assigned to the $web container. I forgot to set this and kept getting a mysterious 500 BadUri error.
This setting therefore forces you to assign one domain to each $web container in each storage account. So be it ... but it looks clumsy to have 5 fully-featured storage accounts defined just to hold 5 small static websites. At least they're dirt cheap. *Greg K* >
