Reading the version 2.0 I would like to comment on the definition given in first page.
Just after Papadimitriou citation (3rd paragraph page first) I believe it will be nice to shift
the focus on the WWW and services rather than Internet (physical layer)
I would add something like
“Even more the whole hierarchy of systems defined on the Internet layer as the WWW and social networks on it,
create a complex and intertwingled web of networks whose mathematical properties are still unknown at the moment.”