There are some firewalls that have services attached to them as a fee for content filtering. Does anyone have such a service for the Mikrotik? Is there a database that the Mikrotik and reference when someone is browsing the internet and trying to get to sites they shouldn’t be?
you can use L7 rules for content filtering, seems to work also on website keywords. Works also for skype, torrents etc. Of course L7 rules inspect every packet, so powerful machine is needed http://wiki.mikrotik.com/wiki/Manual:IP/Firewall/L7