| USGS maps | useful for finding cemetaries, etc |
| Bureau of Land Management | online land patents of midwest states, searchable, very interesting |
| Genealogy libraries on the internet | public and state libraries, can be very useful |
| Cyndi's genealogy web pages | the most comprehensive genealogy site on the internet |
| USGenWeb Project | pages for most states and counties |
| Tombstone Inscription Project | an effort to document all cemeteries |
| Buckinghamshire, UK Genealogy Society | includes Ivinghoe and Tring |
| Library of Congress | need I say more? |
| Bookbinder | a search engine of used bookstores on the internet |