I've been working on my family's "tree" for several years now and since most of my family burials are nowhere near where I live, Find A Grave has been very helpful to me. I was born in Arkansas but ended up in Texas before I turned one! Family names I am working on are: BLACK, THOMPSON, ALFORD, ELMORE, MARTIN, BOLLS, JESTER, and others. Many of these folks are in Arkansas with some being in Alabama, Texas, Oklahoma and Louisiana (and the occasional drifter out to CA!)
As for the photos I have taken and added to memorials, you are welcome to use them for your personal family trees, on Ancestry.com, etc. No need to ask me first.
And a BIG thank you to all the wonderful volunteers out there who claim my photo requests, inform me of problems and generally just help the whole FindaGrave community!