What happens when you type google.com into the browser and press enter?

Wow this is fun, and could be the beginnings of a whole book!

At the level the author is approaching it there's so much more to add in, like what a typical browser is doing sending partial searches for auto-complete, and the bit where your ISP sends copies of your words to your local spy agencies. Almost infinite scope for expansing and exploring that could make a very compelling story for technical and non-technical readers alike.