This book is from 2004, which means a lot of it can be read as a historical artifact - he spends A LOT of time talking about the issues surrounding music filesharing. He focuses on Napster and it's immediate successors, and this comes even before LimeWire.
What this book is, is a discussion of the philosophical tensions surrounding the internet. There are corporate and governmental interests about control that find themselves in opposition to some of the "baked into the cake" anarchistic tendencies of the internet itself. He's writing post-9/11 and the Patriot Act and the pressures that were put on libraries in particular and the internet in general - and reading this fifteen years later gives some distance on the issues, as well as making fresh some issues that maybe we've come to sort of just accept as "the way things are."
He's a media studies guy with a degree in American Studies, from Buffalo, NY. He taught for years at NYU and is currently at UVA. He's no slouch. The philosophical tug-of-war continues with the same parties lined up as he identified them 15 years ago - transnational corporations and governments on one side, and civil-libertarians, political dissidents, librarians, religious communities, and scientists and academics on the other.
His big concern is about how culture works and grows and matures, and if the throttles that patent and copywrite holders want to impose will have a stunting effect on cultural development. The answer is: probably. The US government has imposed a set of ideas about the world (neoliberalism, once more commonly called the Washington Consensus) and has picked a handful of transnational corporations to support. Some are liked by one party or the other, and a few are supported by both.
We need to have a solid discussion about the extent of copywrite and patent protections, and figure out how much we want to support creators, how much we want to free up information for the common culture, and how much we want to allow transnational corporations to gather wealth based on captured copywrites and patents.
He also raises an issue I have often wondered about in passing but never really dug into - what is the impact of diaspora communities on the government of the home nation? I deal with this in my own life as an adopted in member of a diaspora religious community - but this is only a marginal example. What influence does the diaspora Han Chinese and Indian communities have on the political life of the home state? Do those governments care? Curious.
He ends up defending a left-center cosmopolitan republicanism (all terms lower case on purpose), that is fairly predictable.
A pretty good book- will definitely read some of his more recent works on social networks.