Law Review

Search for webpages that were formerly on the internet, or older versions of webpages.

Over 25 million research articles and other scholarly documents preserved in the Internet Archive

Includes a backup list to find saved copies of datasets, and other resources to find lost datasets.

From Harvard Law. "The 16TB collection includes over 311,000 datasets harvested during 2024 and 2025, a complete archive of federal public datasets linked by data.gov. It will be updated daily as new datasets are added to data.gov.
This is the first release in our new data vault project to preserve and authenticate vital public datasets for academic research, policymaking, and public use."

"The Public Environmental Data Partners are committed to preserving and providing public access to federal environmental data."

"The End of Term Web Archive captures and saves U.S. Government websites at the end of presidential administrations." A collaborative initiative of nonprofit organizations and some university libraries.

The Web Integrity Project's Censorship Tracker. The Sunlight Foundation "aggregates and verifies examples of the most significant cases of online information censorship on the federal Web since November 2016."

"Access historical versions of U.S. government websites from before January 20, 2025 with a simple URL change.
How it works: Take any .gov URL and add wayback.com right after .gov, and you'll be redirected to the Wayback Machine's archived version of the page."

by Coherent Digital, a company that creates databases of endangered web material from around the globe.