The author you're looking for is Steve Case. He was a co-founder of AOL and wrote 'The Third Wave: An Entrepreneur's Vision of the Future'. It's more of a business and technology forecasting book than a novel. I picked it up a few years back when I was reading a lot about the digital economy's history.
It argues that the first wave was building the internet's foundation, the second was the app and social media explosion on top of it, and the third wave is about integrating the internet seamlessly into everyday physical sectors like health, education, and transportation. Honestly, some of the predictions feel a bit optimistic now, but his insider perspective on the early web days is the most engaging part for me. The writing is clear, though it leans corporate.