The Indiana State Archives WWW site indicates what resources are available there as well as giving directions on submitting postal requests for information. A few online files are available. You can search Ft. Wayne and Laporte-Winamac land office records and Posey County Circuit Court Records. (http://www.ai.org/icpr/archives).
University of Notre Dame Archives web page provides a catalog of their holdings and also a lsit of early students (1850-1910) and faculty. (http://archives1.archives.nd.edu/guidecon.htm)
The Local Historical Societies link on the Indiana State Archives page has a list of snail-mail addresses for many Indiana public libraries as well as historical societies. (http://www.in.gov/icpr/archives/featured/loclsocs.html) If you can't find an organization for the county you are researching, try Genealogical Societies: Indiana which has postal addresses of over 70 Indiana local county societies. ( http://www.indianahistory.org/edu/localhistory/genedir.html)
Indiana in the Civil War is a well organized site with information on Indiana Civil War Regiments. Even if none of your ancestors are known to have participated directly, you may enjoy this page detailing "The Hoosier Contribution". www.indianainthecivilwar.com
Evan's Genealogy Page features Daviess, Knox, and Martin counties in southern Indiana. http://www.dmrtc.net/~ehand/
Ohio River Valley Families lists over 500 surnames of families along the Ohio River in IN, OH, KY, and PA. www.orvf.com
Lori Hoffman's Homepage in southern Indiana has a diverse selection of web links, many with a genealogical flavor. Lori has THE page for Ripley county researchers. In addition to co-ordinating the Ripley GENWEB page, she has the Ripley County Historical Sociey pages too! http://loricase.com/my-neck
Indiana History has links to Hoosier genealogy and historical information by IUPU FortWayne (http://www.ipfw.edu/ipfwhist/indihist.htm)
County Historians: Indiana lists names and addresses of Indiana's Official County Historians. These volunteers may be able to help you with historical questions about their appointed county. They may, or may not, charge a fee. http://www.indianahistory.org/edu/localhistory/cohist.html
WPA Life Histories of Indiana Home Page contains first-person accounts of Morgan's 1863 Raid in Jefferson and Ripley Counties and also a "Forgotten Chapter in Lafayette's Civil War" in 1862. These stories were recorded in 1938/1939. (http://rs6.loc.gov/ammem/wpaintro/incat.html)
Consult the Allen County Public Library Home Page before your trip to Fort Wayne, Indiana
The Monroe County Public Library offers Indiana facts, trivia, and a listing of the resources available there.
The St. Joseph County Public Library (SJCPL) on-line catalog includes the Mishawaka-Penn and Plymouth catalogs, as well as their own in South Bend (http://sjcpl.lib.in.us/).
Visit the Indiana State Library web site to see what they have (a genealogy section) or if you want to find other state libraries, the Library of Congress, or other Indiana public and university libraries. (http://www.statelib.lib.in.us/)