For a book written 20 years ago, parts of it hold up amazingly well. Rheingold correctly predicted a lot of Internet issues, like service-for-privacy and the rise of social networks.

I would give the book 3.5 stars, and, had I read it fifteen years ago I would have given it 4 or 5. I guess I was hoping for more theory and analysis than the story of the Internet. But, I am sure that puts me in the minority of readers.