These are the sites that have been the most help to me.

GenForum a surname message board. If they don't have your name, you can request a board. They also have statewide message boards and countywide message boards.
The USGenWeb Project - Home Page pick your state and go on to your county of interest. Tons of stuff. You could spend hours here!
Cyndi's List of Genealogy Sites on the Internet Cyndi is the mother of internet genealogy, she has almost everything you need in one spot. You could spend days here!
RootsWeb Genealogical Data Cooperative so many names, so little time! Please support this site.
Family History Information/What Can I Do First? A LDS site, great for planning trips to your local Family History Center. You can also print charts from this site.
NUCMC Home Page National Union Catalog of Manuscripts Collection. Letters, Papers, Documents, even a Bible or two! Worth searching.
American Local history Network: Wisconsin Sit...Great Wisconsin site.
Vital Records Information for United States (... Here are addresses to write for vital records.
Your Past Connections - Search Family History... Bibles, Letters, Photos ect for sale or for the price of postage. And Email Updates for new stuff!
FamilySearch Internet Genealogy Service a LDS site, more great work. Type in a first and last name, some good leads, but always consult the primary source.
Random Acts of Genealogical Kindness - Geneal... Nice people willing to help you, please follow the guidelines!
10,000-Year Calendar! Are you a Sunday Child? Use this site to find out.
USGenWeb Archives Search Page Type your surname in and click on the state in question.
Ford and Nagle more photos, bibles, documents.
Cousin Relationships is she a second cousin or a first cousin once removed? Find out here!
Dogpile my favorite search engine, type in your surname and the word "genealogy". Hint.. when using a search engine for genealogy also try "Family Tree" or "Family History" or "genielogy"

Friend's Pages
LINKS of LODIWORLD a great site with even more genealogy links.
My Ross Genealogy Missing Link please check your database for this Ross family in Wisconsin.
11th Wisconsin Infantry Homepage more civil war lists.

If you have a genealogy site relating to Wisconsin please email me a link and I will include it.