In this weekend’s Boston Globe, David Weinberger delivers the metadata angle on Google Print:

…despite the present focus on who owns the digitized content of books, the more critical battle for readers will be over how we manage the information about that content-information that’s known technically as metadata.
…we’re going to need massive collections of metadata about each book. Some of this metadata will come from the publishers. But much of it will come from users who write reviews, add comments and annotations to the digital text, and draw connections between, for example, chapters in two different books.
As the digital revolution continues, and as we generate more and more ways of organizing and linking books-integrating information from publishers, libraries and, most radically, other readers-all this metadata will not only let us find books, it will provide the context within which we read them.

The book in the network is a barnacled spirit, carrying with it the sum of its various accretions. Each book is also its own library by virtue not only of what it links to itself, but of what its readers are linking to, of what its readers are reading. Each book is also a milk crate of earlier drafts. It carries its versions with it. A lot of weight for something physically weightless.