Use Mikrotik RouterOS to block sites.

I have a customer who wants to block certain sites from being accessed by certain users, for example, the directors should be able to access all sites, but the accounts staff should not be able to access facebook.com or youtube.com but should be able to use say google.com
Is there a way we can use mikrotik router OS as a solution to this as they are already using it as a router? Maybe block the sites based on IP addresses of the LAN users as they all use static IPs.

Yes. That’s exactly what I’d do. Address lists are your friend.

Thabks for that. Could you be more precise maybe with an example