| Southern Illinois University Press | www.siu.edu/~siupress/ |
| University of Illinois Press | www.press.uillinois.edu/ |
| Abraham Lincoln Presidential Library | www.alplm.org/home.html |
| Hildene: The Lincoln Family Home | www.hildene.org |
| Mary Todd Lincoln House | www.cr.nps.gov/nr/travel/lexington/mtl.htm |
| Lincoln Home National Historic Site | www.nps.gov/liho/ |
| National First Ladies’ Library | http://www.firstladies.org |
| Abraham Lincoln Online | www.abrahamlincolnonline.org |
| Abraham Lincoln Research Site | http://rogerjnorton.com/Lincoln2.html |
| A. Lincoln Blog | http://alincolnblog.blogspot.com/ |
| Lincoln Studies website and blog | http://www.lincolnstudies.com/ |
| The Lincoln Forum | www.thelincolnforum.org/index.html |
| Abraham Lincoln Bookshop | www.alincolnbookshop.com |