What mapping software does everyone use?

[Absinthium]

What I am looking at being able to do is lay a tv down flat, and have maps displayed from my computer, and have my players play on it. I would like to be able to have fog of war, and I was hoping for some suggestions.

[FuelDrop]

I use Campaign Cartographer if I am doing something on the computer.

Otherwise I use campaign tiles.

[Lyee]

Roll20? I use it to host online sessions, works great