I'm surprised by that, too. I've seen an appeal to yahoo to open source it, but at the moment, I have to work with the assumption that it will cease to exist sometime in the indeterminate future.

...and it might be that a bookmarking site isn't the best choice for indexing book reviews. But going away from finding a new bookmarking site means throwing away a decent chunk of the work that's been done. And I really don't want to do that.