For those interested in a step back in time to a 2016 paper
Goods: Organizing Google’s Datasets [static.googleusercontent.com] (PDF) that lays out the foundation research using Google internal datasets.
Note: Goods:
Google
Data
sets.
Also, some cautions.
These are disparate dataset results requiring appropriate data cleaning, normalisation, etc. prior to combining.
As the catalogue of available datasets is opened to all available public (aka other than academic, enterprise, government) problems of quality increase greatly. This is already a problem with many (especially) social science datasets; gaming for SEO can (already) now be added to gaming for grants. Datasets are rarely ‘pure’. Caveat emptor.
That said, if approached as one might Wikipedia, a shortcut with pointers to actual original information, Google dataset search is quite a useful service.
Ave, Google: Morituri te salutant.
Yes, websites and their information is increasingly unnecessary to the Google answer ecosystem.