A recent Genijourney blog post states, “One of the best resources I’ve found has been Archive.org. This site describes itself as a non-profit library of millions of free books, movies, software, music, websites, and more. From a genealogy perspective, it pulls from a plethora of available historical online resources that have been digitized, indexed and are searchable.”
When you go to archive.org, you can search for items such as Vital Records, family history books, town yearbooks and much more.
The complete article explains how to effectively use archive.org, including several tips to make your search faster and more efficient.
Good luck with your research!