Since it’s inception, ifatc.org has been a great resource for controllers. Whether it be to find an airport to control, check inbound statistics, have a reference for terrain, ect. It has a lot of amazing uses.
The downside to being so useful is that people tend to rely way to heavily on the site, and don’t check other things before opening. In some instances, the information shown on the site can be also misleading due to some small inaccuracies.
It’s not the only resource, there’s many more that should be checked prior to controlling.