Very well done! I like that you have a simple static url for each conference. I also like the clean, responsive layout. The pictures are a nice plus. Finally I like how easy it is to switch between distance or price. A great effort!
edit: rewording
Thank you. I am very pleased to hear that.
Very cool implementation, I really like it! - are you using anything besides Booking.com?
Thanks. :)
Not at the moment. Maybe Airbnb in the near future.
Any other suggestions?
Depends on what you are looking for and how much work you want to do. Booking.com is one of the easiest because you can simply refer to their "booking" page for purchase. With others you would likely need to have your own purchase page (http://rentalsunited.com/ for example...you'd want to get set up as a Channel Partner).