I have also started using Zoom for my players. We started a new campaign with 7 players plus myself and the video conferencing of Zoom allows all eight of us to be onscreen together at the same time. Zoom goes fast enough that we do not find ourselves talking over one another due to lag, which is a godsend.
Since one of my players already has it for work we have the $15 per month subscription available to us, which means more than 40 minutes of playtime, as also has the shareable whiteboard to use. As DM I also can open up maps I have from my desktop and then 'share screen' to let others see them. Finally just for easiest use... I have an actual white board standing next to me on-screen that I use to write out initiative orders, as well as scribble out quicker maps that everyone can see alongside my head at all times. We don't need tokens, I just dry-erase their character initial as they move around the basic map.
I'm running them through Lost Mines of Phandelver, so I pull up and share screen on Schley's pretty maps for all the details, then just sketch the rooms on the physical whiteboard when we start combat.