*meekly pokes head in*
I'm really not sure if these are specific enough, or if they're too specific, or not. I'm afraid I haven't the time to sift through and categorize different parts of the sites.

But I thought I'd post them if you're interested in including them. If not, that's fine. A lot of these are sites where I've obtained antiquated texts and information on the subjects I like to write about.
My primary focus is on the Great Lakes/Old Northwest region, early European (primarily French) exploration of Canada/US and contact with the native tribes, the fur trade, Pontiac's rebellion, the Jesuits, Algonquin and Iroquoian tribes, things such as that. These sites offer information on such topics. Some of the sites, such as Archive.org, offer broader information on other topics, but there are lots of historic/antiquated texts should one search for them. My apologies if you already have some of these links.
University of Michigan Digital Texts Library:
http://quod.lib.umich.edu/cgi/t/text/text-idx/ This includes such collections as: Making Of America ("primary sources in American social history from the antebellum period through reconstruction," including the subjects education, psychology, American history, sociology, religion, and science/technology); Lincoln Materials; Nineteenth Century American Publishing (books and journals published in the US in the 19th century, primarily from 1850-1875); DLPS Text Collections; and more.
Cornell University Library's version of Making of America (might be the same as the above version):
http://cdl.library.cornell.edu/moa/
Online Collections at the Wisconsin Historical Society:
http://www.wisconsinhistory.org/collections.asp This includes access to newspaper articles, images, the "Wisconsin Magazine Of History," the online Wisconsin Historical Collections, etc.
Indian Country Wisconsin:
http://www.mpm.edu/wirp/ Emphasis on "kindergarten through grade 12 instruction in culture, history, sovereignty, and treaty rights of Wisconsin Indian tribes."
First Nations tribal histories and information:
http://www.dickshovel.com/ In particular
http://www.dickshovel.com/up.html (though still in progress; most of the information available pertains to Northeast tribes).
Internet Archive Americana Libraries:
http://www.archive.org/details/americana
Internet Archive Canadian Libraries:
http://www.archive.org/details/toronto
Early Canadiana Online:
http://www.canadiana.org/eco.php (also available in French) Featuring "works published from the time of the first European settlers up to the early 20th Century."
Library & Archives of Canada:
http://www.collectionscanada.gc.ca/index-e.html "Canada's national collection of books, historical documents, government records, photos, films, maps, music...and more."
Canada's Digital Collections alphabetical index:
http://epe.lac-bac.gc.ca/100/205/301/ic/cdc/E/Alphabet.asp
Ohio Historical Society:
http://www.ohiohistory.org/ Includes access to the "Ohio History" magazine online.
Canada History:
http://www.canadahistory.com/
White Oak Society of Deer River, Minnesota:
http://www.whiteoak.org/index.shtml This is "a non-profit organization providing living history interpretations of the fur trade era within the Great Lakes region."
The Champlain Society:
http://www.champlainsociety.ca/ Featuring "four centuries of adventure, travel, social change, economic growth, and nation building."
The Perseus Digital Library:
http://www.perseus.tufts.edu/ Features a section on the Upper Midwest.
Northwestern University Library's Digital Library Collections:
http://digital.library.northwestern.edu/
Our Roots Canadian history:
http://www.ourroots.ca/e/index.aspx
1st-Hand-History.org:
http://www.1st-hand-history.org/index.htm Featuring "Written accounts from the 1700s and 1800s."
The "Jesuit Relations" online:
http://puffin.creighton.edu/jesuit/relations/ Filled with much information about early French contact with native tribes and such.
Searching Google Books using the "Full text" only option also brings up plenty of good results on these and other historical topics.
*meekly bows out*