Graphiq's Grave & Cemetery information allows you to search for grave site locations of family members and friends that have passed. The data contains almost seven million entries.
A majority of the data is from U.S. Department of Veterans Affairs, which tracks graves marked with a government grave marker. Information on veterans buried in private cemeteries prior to 1997 is not available. If there is incorrect information you can update a listing by clicking the "Edit Listing" button on the top of the page. You can also add burial information by clicking the "Add Listing" button on the top of the page.
You can search by several filters including first name, last name, date of birth, date of death, cemetery, cemetery state, and cemetery city.
In addition, you may be interested in Death Records and Genealogy and Family Tree Software Comparisons.