I'm assuming that most of you are aware of the free library service at the site, Internet Archive. Zounds! A cajillion books, videos, photos and more. And it's free! Check it out if you already don't have an account. Just discovered a history of a nearby town, a well-researched book published in 1910. Just so happens I have an interest in local history and I'm also doing a project for a new immigrant center in Portland, so texts such as this are very helpful.
Those of you who use other similar sites, kindly pass them along. There's one with a collection of scientific papers and another concerning paleontology that I bookmarked somewhere. It would be nice to have a discussion about these so we can share something besides alt-facts. :)