The Library of Congress surprised us by adding new Montana content to Chronicling America (a national project to digitize newspapers from 1836 to 1922) earlier than expected:
Cut Bank Pioneer Press, 1911-17
Dupuyer Acantha, 1894-1901
Ekalaka Eagle, 1909-16
Glasgow Courier, 1915-22
Madisonian, 1895-96 http://chroniclingamerica.loc.gov/lccn/sn86091484/issues/
Added within two last months:
Bozeman Weekly Chronicle, 1887-88
Neihart Herald, 1891-1900
River Press (Fort Benton), 1905-14
Great Falls Daily Tribune, 1919-21 and 1921-22
Coming with the next update:
Fergus County Democrat, 1904-16
Wibaux Pioneer, 1907-14
These papers are in addition to material we've already placed on Chronicling America (including issues of the Anaconda Standard, the Missoulian, the Billings Gazette and the Yellowstone Monitor (Glendive) among many others. This map shows all digitized Montana newspapers (those for the NDNP project as well as others produced for Montana Memory Project), with links to their respective locations online.
Want to know more about Chronicling America and ways to use it in the classroom? These earlier posts are good starting points: Chronicling America, Read All About It and Searching Chronicling America.
EdSITEment, the National Endowment for the Humanities' site for educators, also has great resources for using Chronicling America, including tutorials and lesson plans.