When I have an hour or two to do some aimless exploring online, I often browse old magazines at archive.org. It's partly for the illustrations, and partly for stuff that might fit here on Hesch History. Every time I do, I'm struck by the incredible information in those articles. Then, it was Current Affairs, but now, it's American and World History.
We've found information about engines, ocean liners, how they built cars and canals, Oh, wow stuff, the cattle market, where fruit was grown, J.J.Hill, Westinghouse, the salt industry, locomotives, skyscrapers, J.P.Morgan, his railroads and steel plants, how mines worked, pictures that talk, as well as ideas that didn't work out so hot. These all came from Technical World, the forerunner of Popular Mechanics magazine, but there are lots of other magazines digitized there, all searchable by title or keyword or year.
The Library of Congress has digitized newspapers from towns around the country (1836-1922), so there are historical accounts there, too. If you're looking for local history, try Minnesota Reflections, where you'll find the Pierz Journal (among other papers).
These websites are too good a resource to ignore, and the school year is just beginning. You're welcome!