Friend Pecay (of BibliOdyssey fame) tipped me off to a great resource: Wyoming Newspaper Project. "Available through this website are all the newspapers printed in Wyoming between 1849 and 1922, in an easily searchable format." All Wyoming newspapers through 1922! I mean, we know that Wyoming is sparsely populated but that is still an amazing feat. Half of the 900,000 images are online right now with the rest to follow over a few months.
This digital archive has a plain but useful user interface with strong search and browse features. You can search or browse, including browsing by city (and it is fun to see what little hamlets once had newspapers). In my experience the site is still a bit shaky, so if your search fails just come back later and try again.
All the newspapers for an entire state! What a resource this is for historians of Wyoming and the American West.
