Ranking higher is hard, those sites have been around for ages. We rank quite well on: "Nederlands oefenen" & "Werkwoordspelling" for example. I don't know if

Ranking higher is hard, those sites have been around for ages. We rank quite well on: "Nederlands oefenen" & "Werkwoordspelling" for example. I don't know if he is obligated to send his yearly accounts to the KVK? Getting more info on the marketsize is a good tip :)