Seeing that both TypePad and BuyDomains.com support domain mapping, I would that I'd try this out. The idea is that everything in this blog will have an URL that starts with "www.explodedlibrary.info/" rather than "explodedlibrary.typepad.com/salonblog/". This sounds like a good idea. The downside is that if you've linked to any particular entries in this blog, your links may become out of date - or maybe that's the RSS feed.