African American Cemeteries Online; Tennessee 
Cemetery Junction - Tennessee cemeteries listed alphabetically; over 42,000 listings
Cemetery Surveys, Inc Over 200,000 individual gravestone photos;  Thousands of genealogically-interesting documents from NC, TN, GA
Elmwood Cemetery, Memphis a list of the Confederate soldiers and veterans buried
Interment.net-Tennessee
Tennessee Virtual Military Cemetery goal of this project is to identify all graves of veterans who served in the military units from Tennessee during the Civil War and to display photos of those graves
The Tombstone Transcription Project - cemeteries for Tennessee many online cemetery transcriptions here

Additional Resources

Tennessee Obituaries enter your Tennessee ancestor's name to search the world's largest newspaper archive; over 12 million newspaper pages
Tennessee Birth Records
Tennessee Marriage Records
Tennessee Divorce Records
Tennessee Death Records