A number of years ago I founded, along with Brandon Locke and Sarah Melton, Endangered Data Week, designed to highlight threats to publicly available data as well as train folks to work with data. And while EDW wound down in 2020, the work and skills remain essential. The End of Term Web Archiving team has been working hard to archive datasets and government websites that were at risk of being taken offline or have gone offline since January 20, as have the good folks over at r/DataHoarder.
Today, the New York Times has a good piece on the government websites that have gone offline.