The Association of World Heritage sites in Finland has opened a new website presenting their seven World Heritage sites: https://www.maailmanperinto.fi/en/
The site also includes information about World Heritage in general, World Heritage education as well as sustainable tourism. Also, the association and its projects and activities are presented. The site is in Finnish, Swedish and English.
You can follow the Association of World Heritage sites in Finland also in Facebook and Twitter, however the communication in these social media channels are basically in Finnish.