It's said that if you go back far enough, everyone is related. The same is true of quite a few products and services
Does anyone recognize the screen at the far left? It's AOL version 1.0 for PCs, based on the GeoWorks operating system. The use of GEOS is one reason for all the gray, and why it's otherwise a bit different from AOL's immediate predecessor, AppleLink.
If you trace things back two more generations, you find that AOL is related to GEnie, of all things! How? It's in my most recent book, On the Way to the Web: The Secret History of the Internet and Its Founders.