sorry all ... did not realize that this site was
not completely free.
here's the review, in pdf format.
>Unfortunately you either have to be a subscriber to "Science", or do a
>pay-per-view to see this book review. :-(
>Here is a freebie -- the network of these two books [Linked and Nexus] based on
>purchasing patterns on Amazon.com
>Network Key: A-->B means buyers of book A also bought book B.