Article doesn't mention iGoogle personal homepage which they killed in 2014 I think. It was a way to show rss reeds on a Google homepage with a Google searchbar at the top. So very useful
It's one of those things that frameworks had been doing since (before?) 960gs. A Grid really needed to be incorporated into CSS and I'm happy to use it or flexbox for layout purposes depending on my use case.
I'll mention libraries and museums as well. Instead of having a tiff available of high quality record images, some institutions use jpeg2000 and a zoomable js library like openseadragon.
In this case, the jpeg 2000 is probably considered a derivative and thus not a big issue for preservation.