I have become a find a grave convert- a public organizational/resource tool. Love it too.. I use the virtual cemetery tool to better organize subsets of soldiers.
Useful for learning more about a serviceman including the branch he served in. I read one newspaper that credited the accomplishment of the Army to the USMC. Other times you can ID the unit he served with and from it the battle (which weren't necessarily reported). That's better than "somewhere in Europe or the Pacific."