Digitized Materials in the Nooks & Crannies of the Internet

Does your library have a few primary sources that are beloved by genealogists and history buffs? If you're lucky, someone else has already plucked these sources from obscurity and paid to have them scanned, cataloged and posted online where anyone can use them. Sounds too good to be true, but sometimes it happens!

Local Wisconsin history materials turn up in places I never imagined. Here are a few collections where these gems might hide:

Internet Archive
I love the Internet Archive mainly for the Wayback Machine, but it also includes full-text eBooks. Read them online or download them for use with your favorite eBook reader. Some surprising local findings:

• History of Dane County, Wisconsin
• Autumn Leaves
• Outline Sketches of Sauk County
• The Madison Guide Book
  

Google Books
Wisconsin history is represented among the many, many full-text public-domain books in the Google Books collection. Some surprising local findings:

• The History of Sauk County
• Historical Wisconsin Blue Books
• Wisconsin: Its Story and Biography, 1848-1913

University of Wisconsin Digital Collections
It's not just for University stuff! The UW Digital Collections Center digitizes and hosts a rich collection of materials of importance to Wisconsin in its State of Wisconsin collection.  Some surprising local findings:

• Historical County Plat Maps from South Central Wisconsin and Early Madison City Directories
• History of Green County, Wisconsin (1884) and History of Green County, Wisconsin (1877)
• Weehaukaja: A History of the Village of Barneveld and the Town of Brigham, Volume 1 and Volume 2

These collections are a good starting point in a search for digitized materials. What sources have you been surprised to find online?