Utah Burials Database
If there's one thing Utah does well, it's genealogy. The Utah Burials Database is just one thoroughly splendid example. It now boasts more than 600,000 entries from 365 cemeteries—about two-thirds of the 550 known cemeteries in the state. If I have any criticism, it's that dates of birth seem to have been calculated in many cases from ages carved on stones (the submission format doesn't have "Age at Death" fields). But this is a small oversight, and one that can be easily overcome by driving 20 or 30 hours to Utah and consulting the original sources.