The ten things include the origins of the Internet, from a 1963 memo about an "intergalactic computer network" to ARPANET (pre-cursor to the Internet we have today), to the first instances of spam and web logs. Not an exhaustive list, as made clear by a few of Neatorama's commenters, but an enlightening look at the origins of a technological evolution that helps pay our bills. From the post:

... how much do you know about the Internet? Did you know that you have the Soviets to thank for this wonderful invention? Or that despite the flack that he got for inventing the Internet, Al Gore actually did play a major role in the creation of the Net?

It's easy to take for granted a lot of technology that wasn't available just ten years ago (when a few of us started working here). But understanding where the Internet came from can help us understand where it's going next, which can be a huge advantage in our line of work.