[luckylion]

What does The provision of services and utilities supporting the maintenance and existence of settlements, including transport mean in that context. Airbnb allowing settlers to rent out rooms, or Airbnb allowing settlers to book trips via Airbnb?

[rtkwe]

It's a very broad category but 'services supporting the maintenance and existence of settlements' would definitely cover providing a way to make money off the homes/apartments in settlements like AirBnB and Booking does. It's providing a means of financial support to the people in the settlements.

I'm a bit confused about TripAdvisor but I bet there's just some portion of their business I'm not familiar with. It seems like reviews etc of businesses and lodgings inside settlements wouldn't be enough to reach that category.