Anyone know what happened to pweissbooks.com?

I've been trying to access this site for over a week now and all I get is a blank page. Did he simply close up shop? Anyone know the story? (I've purchased books from him before, and was all set to get a few I'd bookmarked last year, so I know that whatever has happened is a fairly recent development.)

If you go on Internet back machine, the last screenshot they got is 28/10/2008. weird

Sorry if I couldn't be more helpful