I found Find a Grave when my husband and I started researching our family trees. The first memorials that I added were of relatives. I then started visiting and photographing cemeteries (with my husband), reading obits, researching death certificates, etc. My hobby turned into a full-time obsession.
I am in the process of transferring most of my memorials to Find a Grave and other members, only keeping relatives.
It has been fun and I hope that my contributions have helped others.